SAMOP 2023 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 41: Ultra-cold Atoms, Ions and BEC III (joint session A/Q)

Q 41.5: Vortrag

Mittwoch, 8. März 2023, 15:30–15:45, F428

Statistically Suppressed Coherence in the Anyon-Hubbard Dimer — •Martin Bonkhoff, Imke Schneider, Axel Pelster, and Sebastian Eggert — Physics Departement and Research Center Optimas, Technische Universität Kaiserslautern, 67663 Kaiserslautern, Germany

The impact of statistical transmutation on superfluid tendencies is investigated for the Anyon-Hubbard dimer, a two-site restriction of the lattice generalization of Kundu anyons [1], experimentally accessible via the creation of density-dependent gauge phases and additional strong confinement [2]. We find a duality relation between the anyonic and the Bose-Hubbard dimer, which allows us to construct the corresponding, exact, algebraic Bethe-Ansatz solution. For large particle numbers and weak on-site interactions, the coherence properties are found to be strongly suppressed by statistical transmutation, with underlying mechanisms and applications analogous to one-axis spin-squeezing and entangled coherent states in quantum optics [3,4].

References:

[1] Bonkhoff, M. and Jägering, K. and Eggert, S. and Pelster, A. and Thorwart, M. and Posske, T., Phys. Rev. Lett. 126, 163201 (2021)

[2] Frölian, A., Chisholm, C.S., Neri, E. et al., Nature 608, 293-297 (2022)

[3] Kitagawa, M. and Ueda, M., Phys. Rev. A 47, 5138-5143 (1993)

[4] Rice, D. A., Jaeger, G. and Sanders, B. C., Phys. Rev. A 62, 012101 (2000)