# Members of the Blume Group at the University of Oklahoma.

**Center for Quantum Research and Technology (CQRT) **

**Homer L. Dodge Department of Physics and Astronomy**

# Doerte Blume (PI)

Doerte received her Ph.D. in physics in 1998 from the Georg-August University, Goettingen, Germany. Her research was jointly supervised by Profs. Jan Peter Toennies at the Max-Planck Institute for Fluid Dynamics in Goettingen, Germany, and K. Birgitta Whaley in the Chemistry Department at UC Berkeley. After 2.5 years of postdoctoral work at JILA/University of Colorado in Boulder in the group of Prof. Chris Greene, she took up a faculty position in the Department of Physics and Astronomy at Washington State University in the beautiful inland Northwest. In the summer of 2017, Doerte relocated to the Homer L. Dodge Department of Physics and Astronomy at the University of Oklahoma. Doerte is a Fellow of the American Physical Society; the citation reads “For contributions to physics of weakly-bound quantum clusters and strongly-interacting degenerate Fermi gases in one dimension”. She is a recipient of a Bush Lectureship at the University of Oklahoma and a Meyer Distinguished Professorship at Washington State University. Her research accomplishments at Washington State University were also recognized through the College of Arts and Sciences Mid-Career Achievement in Scholarship/Creative Activities Award and the College of Sciences Young Faculty Performance Award. Doerte has given over 140 invited talks at universities, summer/winter schools, and workshops/conferences around the world. She regularly co-organizes conferences of varying size, including the Conference for Undergraduate Women in Physics in 2020. In addition, she has served the scientific community as a member of the DAMOP Executive Committee, Remote Associate Editor of Physical Review A, Chair of the APS Few-Body Topical Group, and member of the APS Committee on Scientific Publications.

Doerte uses the pronouns she/her/hers and she is an LGBTQ Ally.

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## Dr. Jianwen Jie (postdoctoral researcher)

Dr. Jianwen Jie received his Ph.D. from Renmin University of China, located in Beijing, under the supervision of Dr. Peng Zhang in May 2018. His Ph.D. research focused on few-body problems in ultra cold atomic systems. Jianwen received his B.Sc. in Physics from North China Electric Power University, Baoding, China, where he worked with Profs. Peng Zhang and Zhanyuan Yan. He joined the Blume group in March 2018 as a postdoctoral researcher to work on spinor BECs. In one project, Jianwen investigated the performance of a SU(1,1) interferometer for different classes of initial states. His theoretical work has practical implications for experiments with spinor BECs and he has been collaborating effectively with experimentalists at OU. Jianwen is also interested in non-equilibrium phenomena, such as many-body localization, in cold atom systems.

###### Publications while in the Blume group:

**Jianwen Jie**, Shan Zhong, Qimin Zhang, Isaiah Morgenstern, Hio Giap Ooi, **Q. Guan**, Anita Bhagat, Delaram Nematollahi, A. Schwettmann, and D. Blume, Dynamical mean-field driven spinor condensate physics beyond the single-mode approximation, submitted for publication (2020).

**Jianwen Jie, **Q. Guan, S. Zhong, A. Schwettmann, and D. Blume, Mean-field spin-oscillation dynamics beyond the single-mode approximation for a harmonically trapped spin-1 Bose-Einstein condensate, Physical Review A **102**, 023324 (2020).

**J. Jie, **Q. Guan, and D. Blume, Spinor Bose-Einstein condensate interferometer within the undepleted pump approximation: Role of the initial state, Physical Review A **100**, 043606 (2019).

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## Dave Hill (graduate student)

Dave is originally from Michigan’s Upper Peninsula, just shy of the US-Canada border. He did his undergraduate work at Grand Valley State University in Allendale, Michigan, and graduated in 2018 with a B.S. in physics and a minor in mathematics. His undergraduate work involved a photon antibunching project based on the work of Grangier, Roger, and Aspect, and laid the groundwork for an undergraduate quantum optics lab at GVSU. Dave joined the University of Oklahoma in the Fall of 2019, and the Blume group in the Summer of 2020. He is excited to now push further into the world of theoretical AMO physics.

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## Kevin Mack-Fisher (graduate student)

Kevin is originally from the City of Brotherly Love, Phildelphia, PA. He graduated undergrad with B.S. double major in Physics and Chemistry and a minor in Mathematics from WCUPA (West Chester University in Pennsylvania). There, his work involved fabricating and characterizing metal oxide nanoparticles formed via laser ablation with the Kolasinski group. After graduation, he spent a year working in a buildings’ insulation analytical chemistry lab and another year working in a solar paste R&D lab. Kevin joined OU in Fall of 2019 and the Blume group in Fall of 2020. Venturing forth, he is excited to make the transition from materials to theoretical AMO physics!

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## Jugal Talukdar (graduate student)

Jugal was born in Assam, India – a small scenic state in the remote north-eastern part of the country, which is famous for its tea and greater one-horned rhinoceros. I moved to Pune in the western part of India to pursue higher education and graduated from the Indian Institute of Science Education and Research (IISER), Pune, in 2017 with a BS-MS dual degree. During the undergraduate studies, my research work was focused on the theoretical study of the dynamics of Rydberg excitations coupled to a photonic crystal waveguide. I joined the University of Oklahoma, Norman, in the Fall of 2017 as a graduate student to continue pursuing research in the field of AMO physics.

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## AJ Yates (undergraduate student)

AJ was in the International Baccalaureate Program at Fort Dorchester High School. He came to OU in August 2016. AJ holds a National Merit Scholarship and is an Honors student. AJ is planning to graduate from OU with a double major in Physics and Mathematics in 2021. AJ joined the Blume group in early 2018. AJ is studying the intricate behaviors of extremely weakly-bound helium clusters. AJ describes his work as follows: “I use numerical methods to study small Helium-4 clusters. Specifically, I use the variational principle, which states that the expectation value of the energy of any trial wave function is greater than or equal to the ground state energy. I am currently searching for a trial wave function that will recover at least 99% of the exact binding energy of the helium dimer. Once I have found this, I will extend it to the three- and four-body systems to find approximations to their ground and excited states. To find the expectation value of the energy, I use direct integration as well as a variational Monte Carlo code that I developed.”

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# Former Group Members

## Samuel Bayliff (REU student)

Samuel joined the group in summer 2019 for a 10-week REU project. He investigated multi-parameter estimation schemes in SU(1,1) interferometers.

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## Dr. Qingze Guan (graduate student and postdoctoral research)

After receiving his B.S. from the School of Modern Physics at the University of Science and Technology of China (USTC), Hefei, in June 2012, Qingze came to Washington State University in August 2012 for his graduate studies. He joined the Blume group in April 2013 and received his Ph.D. in August 2017. He then continued in the Blume group at the University of Oklahoma as a postdoctoral researcher for two years, before moving to Temple University/NIST in September 2019.

###### Publications while in the Blume group:

M. Kunitski, **Q. Guan**, H. Maschkiwitz, J. Hahnenbruch, S. Eckart, S. Zeller, A. Kalinin, M. Schoeffler, L. Ph. H. Schmidt, T. Jahnke, D. Blume, and R. Doerner, Ultrafast manipulation of the weakly bound helium dimer, Nature Physics (2020); https://doi.org/10.1038/s41567-020-01081-3.

**Q. Guan**, M. K. H. Ome, T. M. Bersano, S. Mossman, P. Engels, and D. Blume, Nonexponential Tunneling due to Mean-Field-Induced Swallowtails, Physical Review Letters **125**, 213401 (2020).

Jianwen Jie, Shan Zhong, Qimin Zhang, Isaiah Morgenstern, Hio Giap Ooi, **Q. Guan**, Anita Bhagat, Delaram Nematollahi, A. Schwettmann, and D. Blume, Dynamical mean-field driven spinor condensate physics beyond the single-mode approximation, submitted for publication (2020).

Jianwen Jie, **Q. Guan**, S. Zhong, A. Schwettmann, and D. Blume, Mean-field spin-oscillation dynamics beyond the single-mode approximation for a harmonically trapped spin-1 Bose-Einstein condensate, Physical Review A **102**, 023324 (2020).

**Q. Guan**, T. M. Bersano, S. Mossman, P. Engels, and D. Blume, Rabi oscillations and Ramsey-type pulses in ultracold bosons: Role of interaction, Physical Review A **101**, 063620 (2020).

**Q. Guan** and D. Blume, Energetics and structural properties of two- and three-body

systems in the presence of one-dimensional spin-orbit coupling, Physical Review A **100**, 042708 (2019).

J. Jie, **Q. Guan**, and D. Blume, Spinor Bose-Einstein condensate interferometer within the undepleted pump approximation: Role of the initial state, Physical Review A **100**, 043606 (2019).

**Q. Guan** and D. Blume, Electric-field-induced helium-helium resonances, Physical Review A **99**, 033416 (2019).

**Q. Guan**, V. Klinkhammer, R. Klemt, J. H. Becher, A. Bergschneider, P. M. Preiss, S. Jochim, and D. Blume, Density Oscillations Induced by Individual Ultracold Two-Body Collisions, Physical Review Letters **122**, 083401 (2019). Highlighted as an Editor’s Suggestion and through a Synopsis in Physics.

S.-J. Wang, **Q. Guan**, and D. Blume, K-matrix formulation of two-particle scattering in a waveguide in the presence of one-dimensional spin-orbit coupling, Physical Review A **98**, 022708 (2018).

**Q. Guan** and D. Blume, Three-Boson Spectrum in the Presence of 1D Spin-Orbit Coupling: Efimov’s Generalized Radial Scaling Law, Physical Review X **8**, 021057 (2018).

**Q. Guan** and D. Blume, Analytical coupled-channel treatment of two-body scattering

in the presence of three-dimensional isotropic spin-orbit coupling, Physical Review A **95**, 020702(R) (2017).

**Q. Guan** and D. Blume, Scattering framework for two particles with isotropic spin-orbit coupling applicable to all energies, Physical Review A **94**, 022706 (2016).

**Q. Guan** and D. Blume, Spin-structure of harmonically trapped one-dimensional atoms with spin-orbit coupling, Physical Review A **92**, 023641 (2015).

**Qingze Guan, **X. Y. Yin, S. E. Gharashi, and D. Blume, Energy spectrum of a harmonically trapped two-atom system with spin-orbit coupling, Journal of Physics B: At. Mol. Opt. Phys. **47**, 161001 (2014). Fast Track Communication.

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## Dr. Pere Mujal Torreblanca (visiting graduate student)

Pere, then a graduate student at the University de Barcelona in the groups of Profs. Bruno Julia Diaz and Artur Polls, visited the group for two months in fall 2018. While in the group, Pere developed tools for treating the dynamics of two spin-orbit coupled atoms with zero-range interactions.

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## Dr. Su-Ju Wang (postdoctoral researcher)

Su-Ju received her Ph.D. from Purdue University under the supervision of Prof. Chris Greene, before joining the Blume group as a postdoctoral researcher for two years: one year at Washington State University and one year at the University of Oklahoma. She then moved to Kansas State University, Manhattan, to do a postdoc with Prof. Chii-Dong Lin, working on ultrafast physics.

###### Publications while in the Blume group:

S.-J. Wang, **Q. Guan**, and D. Blume, K-matrix formulation of two-particle scattering in a waveguide in the presence of one-dimensional spin-orbit coupling, Physical Review A **98**, 022708 (2018).

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## Dr. Yangqian Yan (graduate student)

Yan received his B.S. from the University of Science and Technology of China, Hefei, in June 2010; he was in the Special Class for the Gifted Young. Yan entered the physics graduate program at Washington State University in August 2010 and defended his Ph.D. in April 2016. He received the “Chinese Government Award for Outstanding Self-Financed Students Abroad” award in April 2016. Yan then moved to Indiana University-Purdue University Indianapolis to do a postdoc in Prof. Tony Lee’s group. In July 2017, he moved to Purdue University to join Prof. Qi Zhou’s team.

###### Publications while in the Blume group:

**Yangqian Yan** and D. Blume, Path integral Monte Carlo ground state approach: Formalism, implementation, and applications, Journal of Physics B 50, 223001 (2017) (invited Tutorial).

**Y. Yan** and D. Blume, Path-Integral Monte Carlo Determination of the Fourth-Order Virial Coefficient for a Unitary Two-Component Fermi Gas with Zero-Range Interactions, Phys. Rev. Lett. **116**, 230401 (2016).

**Yangqian Yan** and D. Blume, Energy and structural properties of N-boson clusters attached to three-body Efimov states: Two-body zero-range interactions and the role of the three-body regulator, Physical Review A **92**, 033626 (2015).

**Yangqian Yan** and D. Blume, Incorporating exact two-body propagators for zero-range interactions into N-body Monte Carlo simulations, Physical Review A **91**, 043607 (2015).

S. E. Gharashi, X. Y. Yin, **Yangqian Yan**, and D. Blume, One-dimensional Fermi gas with a single impurity in a harmonic trap: Perturbative description of the upper branch, Physical Review A **91**, 013620 (2015).

D. Blume and **Yangqian Yan**, Generalized Efimov scenario for heavy-light mixtures, Physical Review Letters **113**, 213201 (2014).

**Yangqian Yan** and D. Blume, Temperature-dependence of small harmonically trapped atom systems with Bose, Fermi and Boltzmann statistics, Physical Review A **90**, 013620 (2014).

**Yangqian Yan** and D. Blume, Abnormal Superfluid Fraction of Harmonically Trapped Few-Fermion Systems, Physical Review Letters **112**, 235301 (2014).

**Yangqian Yan** and D. Blume, Harmonically trapped Fermi gas: Temperature dependence of the Tan contact, Physical Review A **88**, 023616 (2013).

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## Dr. Ebrahim Gharashi (graduate student)

Ebrahim was a graduate student in the group from April 2010 to August 2015. After receiving his Ph.D. from Washington State University, Ebrahim stayed on for a few months to gain further experience. After working with Prof. Michael Forbes at Washington State University for a bit, Ebrahim joined the Department of Physics at Sharif University of Technology, Tehran, Iran, as a postdoctoral researcher.

###### Publications while in the Blume group:

**S. E. Gharashi** and D. Blume, Broken scale invariance in time-dependent trapping potentials, Physical Review A **94**, 063639 (2016).

**S. E. Gharashi** and D. Blume, Tunneling dynamics of two interacting one-dimensional particles, Physical Review A **92**, 033629 (2015).

**S. E. Gharashi, **X. Y. Yin, Yangqian Yan, and D. Blume, One-dimensional Fermi gas with a single impurity in a harmonic trap: Perturbative description of the upper branch, Physical Review A **91**, 013620 (2015).

Qingze Guan, X. Y. Yin,** S. E. Gharashi**, and D. Blume, Energy spectrum of a harmonically trapped two-atom system with spin-orbit coupling, Journal of Physics B: At. Mol. Opt. Phys. **47**, 161001 (2014). Fast Track Communication.

**S. E. Gharashi, **X. Y. Yin, and D. Blume, Molecular branch of a small highly elongated Fermi gas with an impurity: Full three-dimensional versus effective one-dimensional description, Physical Review A **89**, 023603 (2014).

**S. E. Gharashi** and D. Blume, Correlations of the Upper Branch of 1D Harmonically Trapped Two-Component Fermi Gases, Physical Review Letters **111**, 045302 (2013).

**S. E. Gharashi, **K. M. Daily, and D. Blume, Three s-wave-interacting fermions under anisotropic harmonic confinement: Dimensional crossover of energetics and virial coefficients, Physical Review A **86**, 042702 (2012).

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## Dr. X. Y. (Desmond) Yin (graduate student)

Desmond received his B.S. in Material Physics in June 2009 from Nanjing University, Nanjing, China. He then worked with Prof. Gary Collins at Washington State University on a masters in experimental condensed matter physics. Desmond joined the Blume group in May 2011 and received his Ph.D. in August 2015. He did postdocs with Prof. Tin-Lin (Jason) Ho at Ohio State University, Columbus, USA, and Prof. Xia-Ji Liu at Swinburne University of Technology, Melbourne, Australia, before joining the Physical Review A team as an in-house editor.

###### Publications while in the Blume group:

**X. Y. Yin** and D. Blume, Trapped unitary two-component Fermi gases with up to ten

particles, Physical Review A **92**, 013608 (2015).

S. E. Gharashi, **X. Y. Yin**, Yangqian Yan, and D. Blume, One-dimensional Fermi gas with a single impurity in a harmonic trap: Perturbative description of the upper branch, Physical Review A **91**, 013620 (2015).

**X.-Y. Yin**, D. Blume, P. R. Johnson, and E. Tiesinga, Universal and non-universal effective N-body interactions for ultracold harmonically-trapped few-atom systems, Physical Review A **90**, 043631 (2014). Selected as an Editor’s Suggestion.

Qingze Guan, **X. Y. Yin**, S. E. Gharashi, and D. Blume, Energy spectrum of a harmonically trapped two-atom system with spin-orbit coupling, Journal of Physics B: At. Mol. Opt. Phys. **47**, 161001 (2014). Fast Track Communication.

**X. Y. Yin**, S. Gopalakrishnan, and D. Blume, Harmonically trapped two-atom systems:

Interplay of short-range s-wave interaction and spin-orbit coupling, Physical Review A **89**, 033606 (2014).

S. E. Gharashi, **X. Y. Yin**, and D. Blume, Molecular branch of a small highly elongated Fermi gas with an impurity: Full three-dimensional versus effective one-dimensional description, Physical Review A **89**, 023603 (2014).

**X. Y. Yin** and D. Blume, Small two-component Fermi gases in a cubic box with periodic boundary conditions, Physical Review A **87**, 063609 (2013).

P. R. Johnson, D. Blume, **X. Y. Yin**, W. F. Flynn, and E. Tiesinga, Effective multibody interactions of harmonically confined ultracold neutral bosons, New Journal of Physics **14**, 053037 (2012).

K. M. Daily, **X. Y. Yin**, and D. Blume, Occupation numbers of the harmonically trapped few-boson system, Physical Review A **85**, 053614 (2012).

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## Dr. Kevin Daily (graduate student)

Kevin received his undergraduate degree from the University of Washington, Seattle, double majoring in physics and mathematics. Kevin was a graduate student in the Blume group at Washington State University from 2008-2012. After receiving his Ph.D. in October 2012, Kevin moved to Purdue University, West Lafayette, to do a postdoc with Prof. Chris Greene. He then took a position at Wolfram, where he is putting his amazing Mathematica knowledge to good use.

###### Publications while in the Blume group:

**K. M. Daily** and D. Blume, Tunable high-temperature thermodynamics of weakly-interacting dipolar gases, Physical Review A **89**, 013606 (2014).

S. E. Gharashi,** K. M. Daily**, and D. Blume, Three s-wave-interacting fermions under anisotropic harmonic confinement: Dimensional crossover of energetics and virial coefficients, Physical Review A **86**, 042702 (2012).

**K. M. Daily, **D. Rakshit, and D. Blume, Degeneracies in trapped two-component Fermi gases, Physical Review Letters **109**, 030401 (2012). Selected as an Editor’s Suggestion.

**K. M. Daily, **X. Y. Yin, and D. Blume, Occupation numbers of the harmonically trapped few-boson system, Physical Review A **85**, 053614 (2012).

D. Rakshit, **K. M. Daily**, and D. Blume, Natural and unnatural parity states of small trapped equal-mass two-component Fermi gases at unitarity and fourth-order virial coefficient, Physical Review A **85**, 033634 (2012).

**K. M. Daily** and D. Blume, Thermodynamics of the two-component Fermi gas with unequal masses at unitarity, Physical Review A **85**, 013609 (2012).

D. Blume and **K. M. Daily**, Trapped two-component Fermi gases with up to six particles:

Energetics, structural properties, and molecular condensate fraction, C. R. Physique **12**, 86 (2011).

D. Blume and **K. M. Daily**, Few-body resonances of unequal-mass systems with infinite interspecies two-body s-wave scattering length, Physical Review A **82**, 063612 (2010).

D. Blume and **K. M. Daily**, Breakdown of Universality for Unequal-Mass Fermi Gases with Infinite Scattering Length, Physical Review Letters **105**, 170403 (2010).

**K. M. Daily** and D. Blume, Energy spectrum of harmonically trapped two-component Fermi gases: Three- and Four-Particle Problem, Physical Review A **81**, 053615 (2010).

D. Blume and **K. M. Daily**, Universal relations for trapped four-fermion system with arbitrary s-wave scattering length, Physical Review A **80**, 053626 (2009).

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## Dr. Debraj Rakshit (graduate student)

Debraj received his B.Sc. from the University of Calcutta (RamKrishna Mission Residential College, Narendrapur), Kolkata, India, in 2004 and his M.Sc. from Jawaharlal Nehru University (School of Physical Sciences), New Delhi, India, in 2006. Debraj received his Ph.D. from Washington State University in May 2013. He then did postdocs at the Harish-Chandra Research Institute, Prayagraj (Allahabad), India, with Profs. Aditi Sen(De), Arun Kumas Pati, Ujjwal Sen; at the Polish Academy of Sciences, Warsaw, Poland, with Prof. Mariusz Gajda; and at the Institute of Photonics Sciences (ICFO), Castelldefels (Barcelona), Spain, with Prof. Maciej Lewenstein.

###### Publications while in the Blume group:

**D. Rakshit** and D. Blume, Hyperspherical explicitly correlated Gaussian approach for few-body systems with finite angular momentum, Physical Review A **86**, 062513 (2012).

K. M. Daily, **D. Rakshit**, and D. Blume, Degeneracies in trapped two-component Fermi gases, Physical Review Letters **109**, 030401 (2012). Selected as an Editor’s Suggestion.

**D. Rakshit, **K. M. Daily, and D. Blume, Natural and unnatural parity states of small trapped equal-mass two-component Fermi gases at unitarity and fourth-order virial coefficient, Physical Review A **85**, 033634 (2012).

D. Blume and **D. Rakshit**, Excitations and effective interactions of highly elongated Fermi gas, Physical Review A **80**, 013601 (2009). Article was selected for the August 2009 issue of Virtual Journal of Atomic Quantum Fluids.

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## Dr. Muhammad Asad-uz-Zaman (graduate student)

Asad received his B.Sc. and M.Sc. in Physics from Dhaka University, Dhaka, Bangladesh, in 1998 and 2000, respectively, and his MS in Physics from Washington State University under the supervision of Prof. Steve Tomsovic in 2007. Asad joined the Blume group in January 2008 and received his Ph.D. from Washington State University in May 2011. Asad joined the Faculty at North South University, Bashundhara, Dhaka, Bangladesh, in 2011. Asad also held Visiting Faculty and postdoctoral positions at the United Arad Emirates University, Al Ain, United Arab Emirates, where he collaborated with Prof. Al Khawaja.

###### Publications while in the Blume group:

**M. Asad-uz-Zaman** and D. Blume, Modification of roton instability due to the presence of a second dipolar Bose-Einstein condensate, Physical Review A **83**, 033616 (2011).

**M. Asad-uz-Zaman** and D. Blume, Tuning the structural and dynamical properties of a dipolar Bose-Einstein condensate: Ripples and instability islands, New Journal of Physics **12**, 065022 (2010).

**M. Asad-uz-Zaman** and D. Blume, Aligned dipolar Bose-Einstein condensate in a double-well potential: From cigar-shaped to pancake-shaped, Physical Review A **80**, 053622 (2009). Article was selected for the December 2009 issue of Virtual Journal of Atomic Quantum Fluids.

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## Dr. Krittika Kanjilal (graduate student)

Krittika received her undergraduate degree from the St. Xavier’s College, Mumbai, India. She joined the Blume group at Washington State University in July 2003. Krittika was awarded the 2005-2006 College of Sciences Graduate Student Award. After graduating with a Ph.D. in May 2009, Krittika did postdoctoral with Prof. Ivan Deutsch at the University of New Mexico.

###### Publications while in the Blume group:

**K. Kanjilal** and D. Blume, Low-energy resonances and bound states of aligned bosonic and fermionic dipoles, Physical Review A **78**, 040703(R) (2008).

**K. Kanjilal**, J. L. Bohn, and D. Blume, Pseudopotential treatment of two aligned dipoles under external harmonic confinement, Physical Review A **75**, 052705 (2007).

**K. Kanjilal** and D. Blume, Coupled-channel pseudopotential description of the Feshbach resonance in two dimensions, Physical Review A **73**, 060701(R) (2006).

**K. Kanjilal** and D. Blume, Non-divergent pseudo-potential treatment of spin-polarized fermions under 1D and 3D harmonic confinement, Physical Review A **70**, 042709 (2004).

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## Dr. Ryan Kalas (postdoctoral researcher)

Ryan received his Ph.D. from the University of Virginia, Charlottesville, Virginia. He was a postdoc in the Blume group for two years. During his tenure at Washington State University, Ryan did not only do a lot of excellent research but he additionally very ably taught the undergraduate Classical Mechanics course. Ryan did postdoctoral work at Los Alamos National Laboratory in the group of Dr. Eddy Timmermans. After a quick stint in a grants development office in Oregon, Ryan returned to Los Alamos National Laboratory to work as a scientist.

###### Publications while in the group:

**R. M. Kalas** and D. Blume, Dilute Bose gases interacting via power-law potentials, Physical Review A **77**, 032703 (2008).

**R. M. Kalas** and D. Blume, Equation of state of cold atoms: A lowest-order-constrained variational study of systems with large non-s-wave scattering lengths, Physical Review A **76**, 013617 (2007).

**R. M. Kalas** and D. Blume, Interaction-Induced Localization of an Impurity in a Trapped Bose Condensate, Physical Review A **73**, 043608 (2006).

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## Dr. Gabriel Hanna (undergraduate and masters student)

Gabriel did his undergraduate thesis project on research that contributed to a Physical Review Letters article. He then stayed on to obtain his masters, working on weakly-bound clusters. His results are published in a Physical Review A article. After receiving his masters, Gabriel worked on his Ph.D. in experimental condensed matter physics in the group of Prof. Matt McCluskey at Washington State University.

###### Publications while in the Blume group:

**G. J. Hanna** and D. Blume, Energetics and structural properties of three-dimensional bosonic clusters near threshold, Physical Review A **74**, 063604 (2006).

D. Blume, B. D. Esry, C. H. Greene, N. N. Klausen, and **G. J. Hanna**, Formation of atomic tritium clusters and condensates, Physical Review Letters **89**, 163402 (2002).

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## Dr. K. Nho (postdoctoral researcher)

###### Publications while in the Blume group:

**K. Nho** and D. Blume, Superfluidity of Mesoscopic Bose Gases under Varying Confinements,

Physical Review Letters **95**, 193601 (2005). Article was selected for the November 14, 2005 issue of Virtual Journal of Nanoscale Science and Technology.

Doerte Blume, Professor of Physics

Center for Quantum Research and Technology & Homer L. Dodge Department of Physics and Astronomy; The University of Oklahoma; 440 W. Brooks Street, Norman, Oklahoma 73019; USA

doerte.blume-1 _at_ ou.edu