Nonreciprocal Optomechanical Entanglement against Backscattering Losses

• URL: http://arxiv.org/abs/2002.11148v4
• Date: Tue, 6 Oct 2020 03:14:08 GMT
• Title: Nonreciprocal Optomechanical Entanglement against Backscattering Losses
• Authors: Ya-Feng Jiao, Sheng-Dian Zhang, Yan-Lei Zhang, Adam Miranowicz, Le-Man Kuang, Hui Jing
• Abstract summary: We find that by splitting the counterpropagating lights of a spinning resonator via the Sagnac effect, photons and phonons can be entangled strongly in a chosen direction but fully uncorrelated in the other. This makes it possible both to realize quantum nonreciprocity even in the absence of any classical nonreciprocity and also to achieve significant entanglement revival against backscattering losses in practical devices.
• Score: 0.0
• License: http://creativecommons.org/publicdomain/zero/1.0/
• Abstract: We propose how to achieve nonreciprocal quantum entanglement of light and motion and reveal its counterintuitive robustness against random losses. We find that by splitting the counterpropagating lights of a spinning resonator via the Sagnac effect, photons and phonons can be entangled strongly in a chosen direction but fully uncorrelated in the other. This makes it possible both to realize quantum nonreciprocity even in the absence of any classical nonreciprocity and also to achieve significant entanglement revival against backscattering losses in practical devices. Our work provides a way to protect and engineer quantum resources by utilizing diverse nonreciprocal devices, for building noise-tolerant quantum processors, realizing chiral networks, and backaction-immune quantum sensors.

Related papers

• The curse of random quantum data [62.24825255497622]
  We quantify the performances of quantum machine learning in the landscape of quantum data. We find that the training efficiency and generalization capabilities in quantum machine learning will be exponentially suppressed with the increase in qubits. Our findings apply to both the quantum kernel method and the large-width limit of quantum neural networks.
  arXiv  Detail & Related papers  (2024-08-19T12:18:07Z)
• Crossing exceptional points in non-Hermitian quantum systems [41.94295877935867]
  We reveal the behavior of two-photon quantum states in non-Hermitian systems across the exceptional point. We demonstrate a switching in the quantum interference of photons directly at the exceptional point.
  arXiv  Detail & Related papers  (2024-07-17T14:04:00Z)
• Chiral photon blockade in the spinning Kerr resonator [0.4398130586098371]
  We show that by driving such a device at a fixed direction, completely different quantum effects can emerge for the counter-propagating optical modes. Our work can stimulate more efforts towards making and utilizing various chiral quantum effects, including applications for chiral quantum networks or noise-tolerant quantum sensors.
  arXiv  Detail & Related papers  (2024-06-02T13:52:50Z)
• Hysteresis and Self-Oscillations in an Artificial Memristive Quantum Neuron [79.16635054977068]
  We study an artificial neuron circuit containing a quantum memristor in the presence of relaxation and dephasing. We demonstrate that this physical principle enables hysteretic behavior of the current-voltage characteristics of the quantum device.
  arXiv  Detail & Related papers  (2024-05-01T16:47:23Z)
• Loss-induced quantum nonreciprocity [0.46603287532620746]
  We take a counterintuitive stance by engineering loss to generate a novel form of nonreciprocal quantum correlations. The interplay of loss and nonlinearity leads to a robust nonreciprocal single- and two-photon blockade, facilitated by destructive quantum interference. Our study sheds new light on the concept of loss-engineered quantum nonreciprocity and opens up a unique pathway for the design of quantum nonreciprocal photonic devices.
  arXiv  Detail & Related papers  (2024-03-21T15:21:47Z)
• Switching classical and quantum nonreciprocities with spinning photonics [0.9419294043578184]
  We show how to achieve, manipulate, and switch classical or quantum nonreciprocal effects of light with a spinning Kerr resonator. The possibility to switch a single device between a classical isolator and a purely quantum directional system can provide more functions for nonreciprocal materials.
  arXiv  Detail & Related papers  (2023-03-31T12:18:17Z)
• Protecting the quantum interference of cat states by phase-space compression [45.82374977939355]
  Cat states with their unique phase-space interference properties are ideal candidates for understanding quantum mechanics. They are highly susceptible to photon loss, which inevitably diminishes their quantum non-Gaussian features. Here, we protect these non-Gaussian features by compressing the phase-space distribution of a cat state.
  arXiv  Detail & Related papers  (2022-12-02T16:06:40Z)
• Probing the symmetry breaking of a light--matter system by an ancillary qubit [50.591267188664666]
  Hybrid quantum systems in the ultrastrong, and even more in the deep-strong, coupling regimes can exhibit exotic physical phenomena. We experimentally observe the parity symmetry breaking of an ancillary Xmon artificial atom induced by the field of a lumped-element superconducting resonator. This result opens a way to experimentally explore the novel quantum-vacuum effects emerging in the deep-strong coupling regime.
  arXiv  Detail & Related papers  (2022-09-13T06:14:08Z)
• Suppressing Amplitude Damping in Trapped Ions: Discrete Weak Measurements for a Non-unitary Probabilistic Noise Filter [62.997667081978825]
  We introduce a low-overhead protocol to reverse this degradation. We present two trapped-ion schemes for the implementation of a non-unitary probabilistic filter against amplitude damping noise. This filter can be understood as a protocol for single-copy quasi-distillation.
  arXiv  Detail & Related papers  (2022-09-06T18:18:41Z)
• Loss-Induced Quantum Revival [1.0462112568971482]
  We show how to realize quantum revival of optical correlations at the single-photon level with the help of loss. Our work provides a strategy to reverse the effect of loss in fully quantum regime, opening up a counterintuitive route to explore and utilize loss-tuned single-photon devices for quantum technology.
  arXiv  Detail & Related papers  (2022-02-05T04:07:48Z)
• Robust Nonadiabatic Holonomic Quantum Gates on Decoherence-Protected Qubits [4.18804572788063]
  We propose a scheme for quantum manipulation by combining the geometric phase approach with the dynamical correction technique. Our scheme is implemented on the superconducting circuits, which also simplifies previous implementations.
  arXiv  Detail & Related papers  (2021-10-06T14:39:52Z)

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.