Duality between amplitude and derivative coupled particle detectors in the limit of large energy gaps

• URL: http://arxiv.org/abs/2305.11949v1
• Date: Fri, 19 May 2023 18:09:42 GMT
• Title: Duality between amplitude and derivative coupled particle detectors in the limit of large energy gaps
• Authors: T. Rick Perche and Matheus H. Zambianco
• Abstract summary: We present a duality between a particle detector model coupled to the amplitude of a scalar field and coupled to the field's derivative in the limit of large energy gaps. We show that the results of the models can be mapped to each other in a one-to-one fashion modulo a rescaling by the detector's gap.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We present a duality between a particle detector model coupled to the amplitude of a scalar field and coupled to the field's derivative in the limit of large energy gaps. We show that the results of the models can be mapped to each other in a one-to-one fashion modulo a rescaling by the detector's gap. Our analysis is valid for arbitrary scalar fields in curved spacetimes, and requires minimal assumptions regarding the detectors. The duality also applies to the case where more than one detector is coupled to the field. This shows that many examples of entanglement harvesting with amplitude coupled UDW detectors give exactly the same result as derivative coupled detectors that interact with the field in the same region of spacetime.

Related papers

• Entanglement generation between two comoving Unruh-DeWitt detectors in the cosmological de Sitter spacetime [2.526712624596066]
  We consider two comoving two-level detectors at a coincident spatial position. The detectors are individually coupled to a scalar field, which eventually leads to coupling between the two detectors. We compute the logarithmic negativity, quantifying the degree of entanglement generated at late times between the two detectors.
  arXiv  Detail & Related papers  (2024-04-18T06:20:07Z)
• Dynamics and Resonance Fluorescence from a Superconducting Artificial Atom Doubly Driven by Quantized and Classical Fields [11.961708412157757]
  Experimental demonstration of resonance fluorescence in a two-level superconducting artificial atom under two driving fields coupled to a detuned cavity. The device consists of a transmon qubit strongly coupled to a one-dimensional transmission line and a coplanar waveguide resonator.
  arXiv  Detail & Related papers  (2024-03-17T08:48:30Z)
• Ancilla quantum measurements on interacting chains: Sensitivity of entanglement dynamics to the type and concentration of detectors [46.76612530830571]
  We consider a quantum many-body lattice system that is coupled to ancillary degrees of freedom (detectors'') We explore the dynamics of density and of entanglement entropy in the chain, for various values of $rho_a$ and $M$.
  arXiv  Detail & Related papers  (2023-11-21T21:41:11Z)
• Harvesting correlations from vacuum quantum fields in the presence of a reflecting boundary [7.888731069560742]
  We study the phenomena of mutual information harvesting and entanglement harvesting for two detector-boundary alignments. The presence of the boundary generally inhibits mutual information harvesting relative to that in flat spacetime without any boundaries. The boundary may play a doubled-edged role in entanglement harvesting, i.e., inhibiting entanglement harvesting in the near zone of the boundary while assisting it in the far zone of the boundary.
  arXiv  Detail & Related papers  (2023-10-11T03:25:25Z)
• Evolution of many-body systems under ancilla quantum measurements [58.720142291102135]
  We study the concept of implementing quantum measurements by coupling a many-body lattice system to an ancillary degree of freedom. We find evidence of a disentangling-entangling measurement-induced transition as was previously observed in more abstract models.
  arXiv  Detail & Related papers  (2023-03-13T13:06:40Z)
• Photon generation and entanglement in a double superconducting cavity [105.54048699217668]
  We study the dynamical Casimir effect in a double superconducting cavity in a quantum electrodynamics architecture. We study the creation of photons when the walls oscillate harmonically with a small amplitude.
  arXiv  Detail & Related papers  (2022-07-18T16:43:47Z)
• Cohering and decohering power of massive scalar fields under instantaneous interactions [0.0]
  We investigate the ability of the field to generate or destroy coherence in a detector by deriving the cohering and decohering power of the induced quantum evolution channel. In view of recent advances in the study of Proca metamaterials, these results suggest the possibility of utilising the theory of massive electromagnetism for the construction of novel applications for use in quantum technologies.
  arXiv  Detail & Related papers  (2022-06-23T16:36:54Z)
• Harvesting Entanglement by non-identical detectors with different energy gaps [3.4925971772712154]
  It has been shown that vacuum entanglement can be harvested by a pair of initially uncorrelated detectors interacting locally with the vacuum field for a finite time. In this paper, we examine the entanglement harvesting phenomenon of two non-identical inertial detectors with different energy gaps. Our results suggest that the non-identical detectors may be advantageous to extracting entanglement from vacuum in certain circumstances as compared to identical detectors.
  arXiv  Detail & Related papers  (2022-04-04T03:10:15Z)
• Two-colour spectrally multimode integrated SU(1,1) interferometer [77.34726150561087]
  We develop and investigate an integrated multimode two-colour SU (1,1) interferometer that operates in a supersensitive mode. By ensuring a proper design of the integrated platform, we suppress dispersion and thereby significantly increase the visibility of the interference pattern. We demonstrate that such an interferometer overcomes the classical phase sensitivity limit for wide parametric gain ranges, when up to $3*104$ photons are generated.
  arXiv  Detail & Related papers  (2022-02-10T13:30:42Z)
• Harvesting entanglement from complex scalar and fermionic fields with linearly coupled particle detectors [0.0]
  We explore entanglement harvesting with particle detectors that couple linearly to non-Hermitian fields. We find that the complex scalar model can be a good approximation for the fermionic model in the protocol of entanglement harvesting.
  arXiv  Detail & Related papers  (2021-11-24T20:18:04Z)
• Collective radiation from distant emitters [63.391402501241195]
  We show that the spectrum of the radiated field exhibits non-Markovian features such as linewidth broadening beyond standard superradiance. We discuss a proof-of-concept implementation of our results in a superconducting circuit platform.
  arXiv  Detail & Related papers  (2020-06-22T19:03:52Z)

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.