A Unified Interface Model for Dissipative Transport of Bosons and Fermions

• URL: http://arxiv.org/abs/2311.10138v1
• Date: Thu, 16 Nov 2023 19:00:01 GMT
• Title: A Unified Interface Model for Dissipative Transport of Bosons and Fermions
• Authors: Y. Minoguchi, J. Huber, L. Garbe, A. Gambassi, P. Rabl
• Abstract summary: 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.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: 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 numerical simulations with a field-theoretic analysis, we investigate the current fluctuations for this process and determine its asymptotic behavior. These findings demonstrate that dissipative bosonic transport belongs to the KPZ universality class and therefore, in spite of the drastic difference in the underlying particle statistics, it features the same coarse grained behavior as the corresponding asymmetric simple exclusion process (ASEP) for fermions. However, crucial differences between the two processes emerge when focusing on the full counting statistics of current fluctuations. By mapping both models to the physics of fluctuating interfaces, we find that dissipative transport of bosons and fermions can be understood as surface growth and erosion processes, respectively. Within this unified description, both the similarities and discrepancies between the full counting statistics of the transport are reconciled. Beyond purely theoretical interest, these findings are relevant for experiments with cold atoms or long-lived quasi-particles in nanophotonic lattices, where such transport scenarios can be realized.

Related papers

• Radiative transport in a periodic structure with band crossings [52.24960876753079]
  We derive the semi-classical model for the Schr"odinger equation in arbitrary spatial dimensions. We consider both deterministic and random scenarios. As a specific application, we deduce the effective dynamics of a wave packet in graphene with randomness.
  arXiv  Detail & Related papers  (2024-02-09T23:34:32Z)
• The bosonic skin effect: boundary condensation in asymmetric transport [0.0]
  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.
  arXiv  Detail & Related papers  (2023-01-26T19:00:00Z)
• Correlated topological pumping of interacting bosons assisted by Bloch oscillations [4.960482661973871]
  We study how particle-particle interactions affect topological transport in a periodically-modulated and tilted optical lattice. Our study deepens the understanding of correlation effects on topological states, and provides a feasible way for detecting topological properties in interacting systems.
  arXiv  Detail & Related papers  (2022-08-17T04:19:45Z)
• Effect of Phonons and Impurities on the Quantum Transport in XXZ Spin-Chains [0.0]
  We evaluate the transport process by incorporating a bath of phonons and impurities in order to understand the role played by each of the factors. We show that while the transport in presence of impurities eventually becomes diffusive, the exact details are dependent on the specifics of the interactions and amount of impurities.
  arXiv  Detail & Related papers  (2022-06-22T15:02:34Z)
• Accessing the topological Mott insulator in cold atom quantum simulators with realistic Rydberg dressing [58.720142291102135]
  We investigate a realistic scenario for the quantum simulation of such systems using cold Rydberg-dressed atoms in optical lattices. We perform a detailed analysis of the phase diagram at half- and incommensurate fillings, in the mean-field approximation. We furthermore study the stability of the phases with respect to temperature within the mean-field approximation.
  arXiv  Detail & Related papers  (2022-03-28T14:55:28Z)
• Finite-size effects of electron transport in PdCoO$_2$ [0.0]
  We present a theoretical framework to elucidate electron transport using a combination of first-principles calculations and numerical modeling of the anisotropic Boltzmann equation. We study different microscopic electron and phonon scattering mechanisms and establish the mean free path hierarchy of quasiparticles at different temperatures.
  arXiv  Detail & Related papers  (2021-06-01T18:00:17Z)
• Observation-dependent suppression and enhancement of two-photon coincidences by tailored losses [68.8204255655161]
  Hong-Ou-Mandel (HOM) effect can lead to a perfect suppression of two-particle coincidences between the output ports of a balanced beam splitter. In this work, we demonstrate experimentally that the two-particle coincidence statistics of two bosons can instead be seamlessly tuned to substantial enhancement. Our findings reveal a new approach to harnessing non-Hermitian settings for the manipulation of multi-particle quantum states.
  arXiv  Detail & Related papers  (2021-05-12T06:47:35Z)
• Interplay between transport and quantum coherences in free fermionic systems [58.720142291102135]
  We study the quench dynamics in free fermionic systems. In particular, we identify a function, that we dub emphtransition map, which takes the value of the stationary current as input and gives the value of correlation as output.
  arXiv  Detail & Related papers  (2021-03-24T17:47:53Z)
• Dynamics of large deviations in the hydrodynamic limit: Non-interacting systems [0.0]
  We study the dynamics of the energy transferred across a point along a quantum chain. We consider the transverse field Ising and harmonic chains as prototypical models of non-interacting fermionic and bosonic excitations.
  arXiv  Detail & Related papers  (2020-07-23T16:33:58Z)
• 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)
• Dynamical solitons and boson fractionalization in cold-atom topological insulators [110.83289076967895]
  We study the $mathbbZ$ Bose-Hubbard model at incommensurate densities. We show how defects in the $mathbbZ$ field can appear in the ground state, connecting different sectors. Using a pumping argument, we show that it survives also for finite interactions.
  arXiv  Detail & Related papers  (2020-03-24T17:31:34Z)

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.