Probing long-range properties of vacuum altered by uniformly accelerating two spatially separated Unruh-DeWitt detectors

• URL: http://arxiv.org/abs/2205.11086v3
• Date: Mon, 26 Sep 2022 13:45:15 GMT
• Title: Probing long-range properties of vacuum altered by uniformly accelerating two spatially separated Unruh-DeWitt detectors
• Authors: Shijing Cheng, Wenting Zhou and Hongwei Yu
• Abstract summary: Long-range properties of a quantum vacuum may be probed by distributing matter over a large spatial volume. We study two uniformly accelerated Unruh-DeWitt detectors which are spatially separated. When the inter-detector separation is much larger than the thermal wavelength of the Unruh thermal bath, the inter-detector interaction displays a completely new behavior.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In a quantum sense, vacuum is not an empty void but full of virtual particles (fields). It may have long-range properties, be altered, and even undergo phase transitions. It is suggested that long-range properties of a quantum vacuum may be probed by distributing matter over a large spatial volume. Here, we study a simplest example of such, i.e., two uniformly accelerated Unruh-DeWitt detectors which are spatially separated, and examine the inter-detector interaction energy arising from the coupling between the detectors and fluctuating fields to see if novel phenomena related to the long-range properties emerge of a vacuum altered by uniformly accelerating two spatially separated detectors through it. Our results show that when the inter-detector separation is much larger than the thermal wavelength of the Unruh thermal bath, the inter-detector interaction displays a completely new behavior, which, as compared with that of the inertial detectors, is surprisingly exclusively acceleration-dependent, signaling a new phase of the vacuum in which its imprint as seen by two inertial observers seems to be completely wiped out. Moreover, we demonstrate that the inter-detector interaction in the near region can be significantly enhanced by the accelerated motion in certain circumstances, and with two Rydberg atoms as the detectors, the acceleration required for an experimentally detectable enhancement of the interaction energy can be $10^5$ times smaller than that required for the detection of the Unruh effect.

Related papers

• Interaction between Unruh-Dewitt detectors exclusively due to acceleration: A Parallel to the FDU Effect [0.0]
  We have discovered an interaction between two detectors in a vacuum that emerges exclusively due to acceleration. This interaction contrasts sharply with the FDU effect, which suggests that a uniformly accelerated detector behaves as if it were in a thermal bath.
  arXiv  Detail & Related papers  (2024-09-27T15:51:36Z)
• The strongly driven Fermi polaron [49.81410781350196]
  Quasiparticles are emergent excitations of matter that underlie much of our understanding of quantum many-body systems. We take advantage of the clean setting of homogeneous quantum gases and fast radio-frequency control to manipulate Fermi polarons. We measure the decay rate and the quasiparticle residue of the driven polaron from the Rabi oscillations between the two internal states.
  arXiv  Detail & Related papers  (2023-08-10T17:59:51Z)
• Dissipative stabilization of maximal entanglement between non-identical emitters via two-photon excitation [49.1574468325115]
  Two non-identical quantum emitters, when placed within a cavity and coherently excited at the two-photon resonance, can reach stationary states of nearly maximal entanglement. We show that this mechanism is merely one among a complex family of phenomena that can generate both stationary and metastable entanglement when driving the emitters at the two-photon resonance.
  arXiv  Detail & Related papers  (2023-06-09T16:49:55Z)
• 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)
• Formation of robust bound states of interacting microwave photons [148.37607455646454]
  One of the hallmarks of interacting systems is the formation of multi-particle bound states. We develop a high fidelity parameterizable fSim gate that implements the periodic quantum circuit of the spin-1/2 XXZ model. By placing microwave photons in adjacent qubit sites, we study the propagation of these excitations and observe their bound nature for up to 5 photons.
  arXiv  Detail & Related papers  (2022-06-10T17:52:29Z)
• Entanglement Harvesting of Inertially Moving Unruh-DeWitt Detectors in Minkowski Spacetime [0.0]
  We investigate the effects of relative motion on entanglement harvesting by considering a pair of Unruh-Dewitt detectors moving at arbitrary, but independent, velocities. We find that the Negativity is a function of the relative velocity of the detectors, as well as their energy gaps and minimal separation.
  arXiv  Detail & Related papers  (2022-05-29T19:09:05Z)
• 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)
• Field assisted extraction and swelling of quantum coherence for moving Unruh-DeWitt detectors [0.0]
  We study the effects of motion for an Unruh-DeWitt detector, modeled as a two-level system, on the amount of coherence extracted. We observe that compared to a detector at rest, for certain values of the initial energy of the field and the interaction duration, the amount is larger for both a detector moving with a constant speed or uniform acceleration.
  arXiv  Detail & Related papers  (2020-06-24T17:48:41Z)
• Gravitational waves affect vacuum entanglement [68.8204255655161]
  The entanglement harvesting protocol is an operational way to probe vacuum entanglement. Using this protocol, it is demonstrated that while the transition probability of an individual atom is unaffected by the presence of a gravitational wave, the entanglement harvested by two atoms depends sensitively on the frequency of the gravitational wave. This suggests that the entanglement signature left by a gravitational wave may be useful in characterizing its properties, and potentially useful in exploring the gravitational-wave memory effect and gravitational-wave induced decoherence.
  arXiv  Detail & Related papers  (2020-06-19T18:01:04Z)
• Unruh effect for detectors in superposition of accelerations [0.0]
  The Unruhh effect is the phenomenon that accelerated observers detect particles even when inertial observers experience the vacuum state. Here we consider the Unruhh effect for a detector that excitation a quantum supertime of different trajectories in Minkowski space.
  arXiv  Detail & Related papers  (2020-03-27T19:02:34Z)
• Decoherence as Detector of the Unruh Effect [58.720142291102135]
  We propose a new type of the Unruh-DeWitt detector which measures the decoherence of the reduced density matrix of the detector interacting with the massless quantum scalar field. We find that the decoherence decay rates are different in the inertial and accelerated reference frames.
  arXiv  Detail & Related papers  (2020-03-10T21:45:09Z)

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.