Non-Hermitian Mott Skin Effect

Yoshida, Tsuneya; Zhang, Song-Bo; Neupert, Titus; Kawakami, Norio

doi:10.1103/physrevlett.133.076502

Phys. Rev. Lett.

2024

DOI: 10.1103/physrevlett.133.076502

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Non-Hermitian Mott Skin Effect

Tsuneya Yoshida,

Song-Bo Zhang,

Titus Neupert

et al.

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2024

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Cited by 2 publications

References 154 publications

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General Criterion for Non-Hermitian Skin Effects and Application: Fock Space Skin Effects in Many-Body Systems

Shimomura,

Sato

2024

Phys. Rev. Lett.

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General Criterion for Non-Hermitian Skin Effects and Application: Fock Space Skin Effects in Many-Body Systems

Shimomura,

Sato

2024

Phys. Rev. Lett.

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Liouvillian skin effects and fragmented condensates in an integrable dissipative Bose-Hubbard model

Ekman,

Bergholtz

2024

Phys. Rev. Research

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Strongly interacting nonequilibrium systems are of great fundamental interest, yet their inherent complexity make them notoriously hard to analyze. We demonstrate that the dynamics of the Bose-Hubbard model, which by itself evades solvability, can be solved exactly at any interaction strength in the presence of loss tuned to a rate matching the hopping amplitude. Remarkably, the full solvability of the corresponding Liouvillian, and the integrability of the pertinent effective non-Hermitian Hamiltonian, survives the addition of disorder and generic boundary conditions. By analyzing the Bethe ansatz solutions we find that even weak interactions change the qualitative features of the system, leading to an intricate dynamical phase diagram featuring non-Hermitian Mott-skin effects, disorder induced localization, highly degenerate exceptional points, and a Bose glasslike phase of fragmented condensates. We discuss realistic implementations of this model with cold atoms. Published by the American Physical Society 2024

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Non-Hermitian Mott Skin Effect

Cited by 2 publications

References 154 publications

General Criterion for Non-Hermitian Skin Effects and Application: Fock Space Skin Effects in Many-Body Systems

General Criterion for Non-Hermitian Skin Effects and Application: Fock Space Skin Effects in Many-Body Systems

Liouvillian skin effects and fragmented condensates in an integrable dissipative Bose-Hubbard model

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