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Cora Fujiwara

Coraline Fujiwara

Assistant Professor

610.758.3649
cof225@lehigh.edu
Lewis Lab 413
Education:

BA in Physics, University of California, Berkeley, 2012

MA in Physics, University of California, Santa Barbara, 2015

Ph.D. in Physics, University of California, Santa Barbara, 2019

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Additional Interests

  • Experimental atomic physics, quantum thermalization, non-equilibrium physics, Floquet engineering, Bose condensates, degenerate Fermi gases, topological physics, disorder-induced phenomena

Research Statement

We are an experimental atomic physics laboratory.

 

Over the past few decades, advances in laser physics (and other fields) have transformed atomic physics laboratories into rich playgrounds for exploring the quantum world. In the Fujiwara Lab, we use ultracold atoms—neutral atoms cooled to billionths of a degree above absolute zero—as highly tunable quantum systems. By placing these atoms in synthetic crystals made of laser light, known as optical lattices, we can recreate and study the behavior of complex materials found in condensed matter physics.

This experimental approach, known as quantum simulation, allows us to probe how strongly interacting quantum systems behave—especially in regimes where conventional materials or classical computers cannot easily reach. Our group aims to explore how quantum matter evolves, thermalizes, or sometimes fails to reach equilibrium, revealing new forms of order and dynamics that only emerge in far-from-equilibrium quantum systems.  

Our particular experimental platform uses ultracold rubidium-87, potassium-40, and potassium-39, which are particularly amenable for these experiments.

Through these experiments, we hope to shed light on fundamental questions in condensed matter physics while training the next generation of experimental physicists as responsible citizens of our world. 

Our laboratory space is currently under renovation and we are looking for talented, motivated, and conscientious scientists to come join us.

 

 

 

 

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BEC of Rubidium-87
Momentum-space image of a Bose-Einstein Condensate of rubidium-87. Around two hundred thousand atoms at less than 100 nK. (University of Toronto, C. Fujiwara postdoc)

 

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Degenerate Fermi Gas of Potassium-40
Momentum-space image of a degenerate fermi gas of potassium-40. Around one hundred thousand atoms at less than 30nK. (University of Toronto, C. Fujiwara postdoc)

 

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atomsin a lttice
Conceptual graphic of spin up or down atoms confined to a three-dimensional cubic optical lattice. From recent publication.

Biography

Cora Fujiwara received her Bachelor of Arts in Physics from the University of California, Berkeley, in 2012, where she worked on microchannel plate characterization for UV detection at the Space Sciences Laboratory. After debating whether to switch fields to experimental condensed matter physics or atomic physics for graduate school, she joined the laboratory led by David Weld at the University of California, Santa Barbara. There, she helped build the lab to investigate the properties of Bose condensates of lithium-7 in strongly driven optical lattices and received her Master of Arts and Ph.D. in Physics in 2015 and 2019, respectively.

She then left sunny California for the University of Toronto to work in the group of Joseph Thywissen as a postdoctoral fellow in the Physics Department and the Centre for Quantum Information and Quantum Control (CQIQC). During her time in Toronto, Cora led a team investigating phenomena in p-wave Feshbach resonances and quantum simulation with fermionic potassium. In 2025, Cora joined the physics faculty at Lehigh University, where she is starting a research group to study ultracold Fermi gases in highly excited and non-equilibrium states of optical lattices.

Links

Google Scholar  GitHub LinkedIn ORCID

Recent Publications

Unitary p-wave interactions between fermions in an optical lattice. V. Venu, P. Xu, M. Mamaev, F. Corapi, T. Bilitweski, J.P. D’Incao, C.J. Fujiwara, A.M. Rey, J.H. Thywissen. Nature 613, 262–267 (2023).

Transport controlled by Poincaré orbit topology in a driven inhomogeneous lattice gas. A. Cao, R. Sajjad, E.Q. Simmons, C.J. Fujiwara, T. Shimasaki, and D.M. Weld. Phys. Rev. Research 2, 032032(R) (2020)

Probing Nonexponential Decay in Floquet–Bloch Bands. A. Cao, C.J. Fujiwara, R. Sajjad, E.Q. Simmons, E. Lindroth, and D.M. Weld. Zeitschrift für Naturforschung A 75, 5, 443-448 (2020).(Invited publication in special issue on "Physics of Non-Equilibrium Systems.")

Quantifying and controlling Prethermal Nonergodicity in Interacting Floquet Matter. K. Singh∗, C.J. Fujiwara∗, Z.A. Geiger, E.Q. Simmons, M. Lipatov, A. Cao, P. Dotti, S.V. Rajagopal, R. Senaratne, T. Shimasaki, M. Heyl, A. Eckardt, and D.M. Weld. Phys. Rev. X 9, 041021 (2019)

Transport in Floquet Bloch Bands. C.J. Fujiwara∗, K. Singh∗, Z.A. Geiger, R. Senaratne, S.V. Rajagopal, M. Lipatov, and D.M. Weld. Phys. Rev. Lett. 122, 010402 (2019).
 

Teaching

I specialize in teaching quantum mechanics, atomic physics, and analog electronics. A complete list of classes can be found on Cora's CV.