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Eigenstate thermalization to non-monotonic distributions in strongly-interacting chaotic lattice gases
Vladimir A. Yurovsky, Amichay Vardi
We find non-monotonic equilibrium energy distributions, qualitatively different from the Fermi-Dirac and Bose-Einstein forms, in strongly-interacting many-body chaotic systems. The…
Creation and Characterization of Matter-Wave Breathers
De Luo, Yi Jin, Jason H. V. Nguyen +6
We report the creation of quasi-1D excited matter-wave solitons, "breathers", by quenching the strength of the interactions in a Bose-Einstein condensate with attractive interactio…
Quantum fluctuations of the center-of-mass and relative parameters of NLS breathers
Oleksandr V. Marchukov, Boris A. Malomed, Vanja Dunjko +4
We study quantum fluctuations of macroscopic parameters of an NLS breathers, i.e., the second-order soliton solution of the nonlinear Schrödinger equation. Uncertainty relations fo…
Splitting of nonlinear-Schrödinger breathers by linear and nonlinear localized potentials
Oleksandr V. Marchukov, Boris A. Malomed, Vladimir A. Yurovsky +3
We consider evolution of one-dimensional nonlinear-Schrödinger (NLS) two-soliton complexes (breathers) with narrow repulsive or attractive potentials (barrier or well, respectively…
Dissociation of one-dimensional matter-wave breathers due to quantum many-body effects
Vladimir A. Yurovsky, Boris A. Malomed, Randall G. Hulet +1
We use the ab initio Bethe Ansatz dynamics to predict the dissociation of one-dimensional cold-atom breathers that are created by a quench from a fundamental soliton. We find that…
Phase transitions in definite total spin states of two-component Fermi gases
Vladimir A. Yurovsky
Second-order phase transitions have no latent heat and are characterized by a change in symmetry. In addition to the conventional symmetric and anti-symmetric states under permutat…