Dynamical suppression of many-body non-Hermitian skin effect in Anyonic systems
- URL: http://arxiv.org/abs/2405.12288v1
- Date: Mon, 20 May 2024 18:00:12 GMT
- Title: Dynamical suppression of many-body non-Hermitian skin effect in Anyonic systems
- Authors: Yi Qin, Ching Hua Lee, Linhu Li,
- Abstract summary: The non-Hermitian skin effect (NHSE) is a fascinating phenomenon in nonequilibrium systems where eigenstates massively localize at the systems' boundaries.
Our results open up a new avenue on exploring novel non-Hermitian phenomena from the interplay between NHSE and anyonic statistics.
- Score: 3.072340427031969
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The non-Hermitian skin effect (NHSE) is a fascinating phenomenon in nonequilibrium systems where eigenstates massively localize at the systems' boundaries, pumping (quasi-)particles loaded in these systems unidirectionally to the boundaries. Its interplay with many-body effects have been vigorously studied recently, and inter-particle repulsion or Fermi degeneracy pressure have been shown to limit the boundary accumulation induced by the NHSE both in their eigensolutions and dynamics. However, in this work we found that anyonic statistics can even more profoundly affect the NHSE dynamics, suppressing or even reversing the state dynamicss against the localizing direction of the NHSE. This phenomenon is found to be more pronounced when more particles are involved.The spreading of quantum information in this system shows even more exotic phenomena, where NHSE affects only the information dynamics for a thermal ensemble, but not that for a single initial state. Our results open up a new avenue on exploring novel non-Hermitian phenomena arisen from the interplay between NHSE and anyonic statistics, and can potentially be demonstrated in ultracold atomic quantum simulators and quantum computers.
Related papers
- Non-Hermitian Skin Effect In Periodically-Driven Dissipative Ultracold
Atoms [2.321156185872456]
The non-Hermitian skin effect (NHSE) is one of most striking properties in the fields of non-Hermitian physics.
We study the NHSE in a 1D optical lattice by periodically-driven ultracold atoms in the presence of staggered atomic loss.
arXiv Detail & Related papers (2023-11-11T12:00:16Z) - Emergence of fluctuating hydrodynamics in chaotic quantum systems [47.187609203210705]
macroscopic fluctuation theory (MFT) was recently developed to model the hydrodynamics of fluctuations.
We perform large-scale quantum simulations that monitor the full counting statistics of particle-number fluctuations in boson ladders.
Our results suggest that large-scale fluctuations of isolated quantum systems display emergent hydrodynamic behavior.
arXiv Detail & Related papers (2023-06-20T11:26:30Z) - Nonreciprocal Charge and Spin Transport Induced by Non-Hermitian Skin
Effect in Mesoscopic Heterojunctions [5.928353106081724]
We show that the NHSE can be engineered in the mesoscopic heterojunctions (system plus reservoir) in which electrons in two channels have asymmetric coupling to those of the reservoir.
Our work opens a new research avenue for implementing and detecting the NHSE in electronic mesoscopic systems.
arXiv Detail & Related papers (2022-09-21T07:55:06Z) - Non-Hermitian skin effect in a single trapped ion [3.480626767752489]
Non-Hermitian skin effect (NHSE) describes the exponential localization of all eigenstates toward boundaries in non-Hermitian systems.
We propose a scheme in which the NHSE significantly impacts the external motion of a single trapped ion through complex spin-motion dynamics.
arXiv Detail & Related papers (2022-09-08T10:26:48Z) - Manipulating non-Hermitian skin effect via electric fields [2.547311585168061]
In non-Hermitian systems, the phenomenon that the bulk-band eigenstates are accumulated at the boundaries of the systems is called non-Hermitian skin effect (NHSE)
We show abundant manipulation effects of dc and ac fields on NHSE, and that the physical mechanism behind these effects is the interplay between the Stark localization, dynamic localization and NHSE.
arXiv Detail & Related papers (2022-01-25T13:43:45Z) - Observation of Non-Hermitian Skin Effect and Topology in Ultracold Atoms [7.71285795527128]
The non-Hermitian skin effect (NHSE) underlies a variety of exotic properties that defy conventional wisdom.
NHSE and its intriguing impact on band topology and dynamics have been observed in classical or photonic systems.
We report the experimental realization of a dissipative Aharonov-Bohm chain in the momentum space of a two-component Bose-Einstein condensate.
arXiv Detail & Related papers (2022-01-24T06:28:02Z) - Simulation of Collective Neutrino Oscillations on a Quantum Computer [117.44028458220427]
We present the first simulation of a small system of interacting neutrinos using current generation quantum devices.
We introduce a strategy to overcome limitations in the natural connectivity of the qubits and use it to track the evolution of entanglement in real-time.
arXiv Detail & Related papers (2021-02-24T20:51:25Z) - Subdiffusion via Disordered Quantum Walks [52.77024349608834]
We experimentally prove the feasibility of disordered quantum walks to realize a quantum simulator that is able to model general subdiffusive phenomena.
Our experiment simulates such phenomena by means of a finely controlled insertion of various levels of disorder during the evolution of the walker.
This allows us to explore the full range of subdiffusive behaviors, ranging from anomalous Anderson localization to normal diffusion.
arXiv Detail & Related papers (2020-07-24T13:56:09Z) - Quantum Non-equilibrium Many-Body Spin-Photon Systems [91.3755431537592]
dissertation concerns the quantum dynamics of strongly-correlated quantum systems in out-of-equilibrium states.
Our main results can be summarized in three parts: Signature of Critical Dynamics, Driven Dicke Model as a Test-bed of Ultra-Strong Coupling, and Beyond the Kibble-Zurek Mechanism.
arXiv Detail & Related papers (2020-07-23T19:05:56Z) - Quantum Zeno effect appears in stages [64.41511459132334]
In the quantum Zeno effect, quantum measurements can block the coherent oscillation of a two level system by freezing its state to one of the measurement eigenstates.
We show that the onset of the Zeno regime is marked by a $textitcascade of transitions$ in the system dynamics as the measurement strength is increased.
arXiv Detail & Related papers (2020-03-23T18:17:36Z) - Energy transfer in $N$-component nanosystems enhanced by pulse-driven
vibronic many-body entanglement [41.94295877935867]
We show that pulses of intermediate duration generate highly entangled vibronic states that spread multiple excitons -- and hence energy -- maximally within the system.
The underlying pulse-generated vibronic entanglement increases in strength and robustness as $N$ increases.
arXiv Detail & Related papers (2017-08-10T17:49:17Z)
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.