The bosonic skin effect: boundary condensation in asymmetric transport
- URL: http://arxiv.org/abs/2301.11339v2
- Date: Mon, 29 Jan 2024 15:48:26 GMT
- Title: The bosonic skin effect: boundary condensation in asymmetric transport
- Authors: Louis Garbe, Yuri Minoguchi, Julian Huber, Peter Rabl
- Abstract summary: We study the incoherent transport of bosonic particles through a one dimensional lattice with different left and right hopping rates.
As the current passing through this system increases, a transition occurs, which is signified by the appearance of a zigzag pattern.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We study the incoherent transport of bosonic particles through a one
dimensional lattice with different left and right hopping rates, as modelled by
the asymmetric simple inclusion process (ASIP). Specifically, we show that as
the current passing through this system increases, a transition occurs, which
is signified by the appearance of a characteristic zigzag pattern in the
stationary density profile near the boundary. In this highly unusual transport
phase, the local particle distribution alternates on every site between a
thermal distribution and a Bose-condensed state with broken U(1)-symmetry.
Furthermore, we show that the onset of this phase is closely related to the
so-called non-Hermitian skin effect and coincides with an exceptional point in
the spectrum of density fluctuations. Therefore, this effect establishes a
direct connection between quantum transport, non-equilibrium condensation
phenomena and non-Hermitian topology, which can be probed in cold-atom
experiments or in systems with long-lived photonic, polaritonic and plasmonic
excitations.
Related papers
- Bosonic Peierls state emerging from the one-dimensional Ising-Kondo interaction [0.6086160084025234]
Peierls transition, a hot topic in condensed matter physics, is usually believed to occur in the one-dimensional fermionic systems.
We show that, by means of perturbation analysis and numerical density-matrix renormalization group method, a bosonic analog of the Peierls state can occur in proper parameters regimes.
arXiv Detail & Related papers (2024-11-25T13:10:53Z) - Polaron formation in insulators and the key role of hole scattering processes: Band insulators, charge density waves and Mott transition [0.0]
A mobile impurity immersed in a non-interacting Fermi sea is dressed by the gapless particle-hole excitations of the fermionic medium.
The polaron spectral function is shown to exhibit striking signatures of the underlying fermionic background.
We find that the ladder approximation is inaccurate in these band systems, due to the fact that the particle and hole scattering phase spaces are comparable.
arXiv Detail & Related papers (2024-08-02T16:36:11Z) - Driven-dissipative phase separation in free-space atomic ensembles [0.0]
We show that a free-space ensemble at a low optical depth can exhibit similar behavior as the cavity system.
We argue that the free-space system does not undergo a phase transition but rather a phase separation", roughly speaking, between saturated and unsaturated regions.
arXiv Detail & Related papers (2024-03-22T14:31:45Z) - A Unified Interface Model for Dissipative Transport of Bosons and
Fermions [0.0]
We study the directed transport of bosons along a one dimensional lattice in a dissipative setting, where the hopping is only facilitated by coupling to a Markovian reservoir.
By combining simulations with a field-theoretic analysis, we investigate the current fluctuations for this process and determine its behavior.
These findings are relevant for experiments with cold atoms or long-lived quasi-particles in nanophotonic lattices, where such transport scenarios can be realized.
arXiv Detail & Related papers (2023-11-16T19:00:01Z) - Entanglement phase transition due to reciprocity breaking without
measurement or post-selection [59.63862802533879]
EPT occurs for a system undergoing purely unitary evolution.
We analytically derive the entanglement entropy out of and at the critical point for the $l=1$ and $l/N ll 1$ case.
arXiv Detail & Related papers (2023-08-28T14:28:59Z) - Topologically bound states, non-Hermitian skin effect and flat bands,
induced by two-particle interaction [91.3755431537592]
We study theoretically repelling quantum states of two spinless particles in a one-dimensional tight-binding model.
We demonstrate, that when the particles are not identical, their interaction drives nontrivial correlated two-particle states.
arXiv Detail & Related papers (2022-11-11T07:34:54Z) - Non-Gaussian superradiant transition via three-body ultrastrong coupling [62.997667081978825]
We introduce a class of quantum optical Hamiltonian characterized by three-body couplings.
We propose a circuit-QED scheme based on state-of-the-art technology that implements the considered model.
arXiv Detail & Related papers (2022-04-07T15:39:21Z) - Simulating non-Hermitian quasicrystals with single-photon quantum walks [8.119496606443793]
We experimentally simulate non-Hermitian quasicrystals using photonic quantum walks.
Our work opens the avenue of investigating the interplay of non-Hermiticity, quasiperiodicity, and spectral topology in open quantum systems.
arXiv Detail & Related papers (2021-12-30T12:19:42Z) - Quantum correlations, entanglement spectrum and coherence of
two-particle reduced density matrix in the Extended Hubbard Model [62.997667081978825]
We study the ground state properties of the one-dimensional extended Hubbard model at half-filling.
In particular, in the superconducting region, we obtain that the entanglement spectrum signals a transition between a dominant singlet (SS) to triplet (TS) pairing ordering in the system.
arXiv Detail & Related papers (2021-10-29T21:02:24Z) - Quantum asymmetry and noisy multi-mode interferometry [55.41644538483948]
Quantum asymmetry is a physical resource which coincides with the amount of coherence between the eigenspaces of a generator.
We show that the asymmetry may emphincrease as a result of a emphdecrease of coherence inside a degenerate subspace.
arXiv Detail & Related papers (2021-07-23T07:30:57Z) - Probing eigenstate thermalization in quantum simulators via
fluctuation-dissipation relations [77.34726150561087]
The eigenstate thermalization hypothesis (ETH) offers a universal mechanism for the approach to equilibrium of closed quantum many-body systems.
Here, we propose a theory-independent route to probe the full ETH in quantum simulators by observing the emergence of fluctuation-dissipation relations.
Our work presents a theory-independent way to characterize thermalization in quantum simulators and paves the way to quantum simulate condensed matter pump-probe experiments.
arXiv Detail & Related papers (2020-07-20T18:00:02Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.