Efficient symmetric and asymmetric Bell-state transfers in a dissipative Jaynes-Cummings model

• URL: http://arxiv.org/abs/2411.10812v1
• Date: Sat, 16 Nov 2024 14:23:00 GMT
• Title: Efficient symmetric and asymmetric Bell-state transfers in a dissipative Jaynes-Cummings model
• Authors: Qi-Cheng Wu, Yu-Liang Fang, Yan-Hui Zhou, Jun-Long Zhao, Yi-Hao Kang, Qi-Ping Su, Chui-Ping Yang,
• Abstract summary: We show efficient symmetric and asymmetric Bell-state transfers, by modulating system parameters within a Jaynes-Cummings model. We further achieve perfect asymmetric Bell-state transfers even in the absence of an exceptional point (EP) Our work presents an approach to effectively and reliably manipulate entangled states with both symmetric and asymmetric characteristics, through the dissipation engineering in NH systems.
• Score: 0.3926357402982764
• License:
• Abstract: Symmetric or asymmetric state transfer along a path encircling an exceptional point (EP) is one of the extraordinary phenomena in non-Hermitian (NH) systems. However, the application of this property in both symmetric and asymmetric entangled state transfers, within systems experiencing multiple types of dissipation, remains to be fully explored. In this work, we demonstrate efficient symmetric and asymmetric Bell-state transfers, by modulating system parameters within a Jaynes-Cummings model and considering atomic spontaneous emission and cavity decay. The effective suppression of nonadiabatic transitions facilitates a symmetric exchange of Bell states regardless of the encircling direction. Additionally, we present a counterintuitive finding, suggests that the presence of an EP may not be indispensable for implementation of asymmetric state transfers in NH systems. We further achieve perfect asymmetric Bell-state transfers even in the absence of an EP, while dynamically orbiting around an approximate EP. Our work presents an approach to effectively and reliably manipulate entangled states with both symmetric and asymmetric characteristics, through the dissipation engineering in NH systems.

Related papers

• Eigenmodes of latent-symmetric quantum photonic networks [37.69303106863453]
  We study the eigenmodes of a 9-site latent-symmetric photonic network. Latent symmetries introduce a powerful new set of tools to the design of systems with desired functionality on any nanophotonic platform.
  arXiv  Detail & Related papers  (2025-01-22T17:21:21Z)
• Diagnosing Strong-to-Weak Symmetry Breaking via Wightman Correlators [20.572965801171225]
  Recent developments have extended the discussion of symmetry and its breaking to mixed states. We propose the Wightman correlator as an alternative diagnostic tool.
  arXiv  Detail & Related papers  (2024-10-12T02:04:40Z)
• Spontaneous PT-symmetry breaking transitions under the influence of noise in an optomechanical system [0.0]
  Spontaneous symmetry breaking is a phenomenon of an alteration of a state symmetry without a change in the system symmetry. In this letter, we consider the behavior of an optomechanical system with an exceptional point under the influence of noise.
  arXiv  Detail & Related papers  (2024-08-09T06:05:59Z)
• Three perspectives on entropy dynamics in a non-Hermitian two-state system [41.94295877935867]
  entropy dynamics as an indicator of physical behavior in an open two-state system with balanced gain and loss is presented. We distinguish the perspective taken in utilizing the conventional framework of Hermitian-adjoint states from an approach that is based on biorthogonal-adjoint states and a third case based on an isospectral mapping.
  arXiv  Detail & Related papers  (2024-04-04T14:45:28Z)
• Symmetry Protected Topological Phases of Mixed States in the Doubled Space [0.0]
  We study the interplay of symmetry and topology in quantum many-body mixed states. In a phenomenon not seen in pure states, mixed states can exhibit average symmetries. We study the patterns of spontaneous symmetry breaking ( SSB) of mixed states.
  arXiv  Detail & Related papers  (2024-03-20T03:40:28Z)
• Symmetry restoration and quantum Mpemba effect in symmetric random circuits [3.326868738829707]
  Entanglement asymmetry serves as a diagnostic tool for symmetry breaking and a proxy for thermalization. In this Letter, we investigate symmetry restoration in various symmetric random quantum circuits.
  arXiv  Detail & Related papers  (2024-03-13T12:20:03Z)
• Restoring Adiabatic State Transfer in Time-Modulated Non-Hermitian Systems [0.0]
  We show that adiabaticity can be achieved when dynamically winding around exceptional points (EPs) in non-Hermitian systems. Our findings offer a promise for advancing various wave manipulation protocols in both quantum and classical domains.
  arXiv  Detail & Related papers  (2024-02-23T12:53:16Z)
• Efficient quantum algorithms for testing symmetries of open quantum systems [17.55887357254701]
  In quantum mechanics, it is possible to eliminate degrees of freedom by leveraging symmetry to identify the possible physical transitions. Previous works have focused on devising quantum algorithms to ascertain symmetries by means of fidelity-based symmetry measures. We develop alternative symmetry testing quantum algorithms that are efficiently implementable on quantum computers.
  arXiv  Detail & Related papers  (2023-09-05T18:05:26Z)
• Noise-resilient Edge Modes on a Chain of Superconducting Qubits [103.93329374521808]
  Inherent symmetry of a quantum system may protect its otherwise fragile states. We implement the one-dimensional kicked Ising model which exhibits non-local Majorana edge modes (MEMs) with $mathbbZ$ parity symmetry. MEMs are found to be resilient against certain symmetry-breaking noise owing to a prethermalization mechanism.
  arXiv  Detail & Related papers  (2022-04-24T22:34:15Z)
• Quantum simulation of a general anti-PT-symmetric Hamiltonian with a trapped ion qubit [8.540612560553887]
  We implement an anti-PT -symmetric Hamiltonian of a single qubit in a single trapped ion by a designed microwave and optical control-pulse sequence. Our work allows quantum simulation of genuine open-system feature of an anti-PT-symmetric system.
  arXiv  Detail & Related papers  (2022-03-03T02:18:39Z)
• Approximately Equivariant Networks for Imperfectly Symmetric Dynamics [24.363954435050264]
  We find that our models can outperform both baselines with no symmetry bias and baselines with overly strict symmetry in both simulated turbulence domains and real-world multi-stream jet flow.
  arXiv  Detail & Related papers  (2022-01-28T07:31:28Z)

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.