Fuzzy spacetime: fundamental limits of quantum-optical holographic bulk reconstruction

• URL: http://arxiv.org/abs/2303.16326v2
• Date: Tue, 30 May 2023 18:17:42 GMT
• Title: Fuzzy spacetime: fundamental limits of quantum-optical holographic bulk reconstruction
• Authors: Erickson Tjoa
• Abstract summary: We realize a version of "short-distance physics corresponds to poor statistics" idea by Kempf. The "fuzziness" of spacetime that arise from operational measurement protocols can be given a holographic dual interpretation. The holographic interpretation necessitates metric reconstruction even in principle due to the universality of future infinity.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In this Essay we construct a concrete, non-perturbative realization of metric reconstruction using quantum-optical model of particle detectors in relativistic quantum information. The non-perturbative approach allows us to realize a version of "short-distance physics corresponds to poor statistics" idea by Kempf which occurs way above the Planck scale before one reaches the quantum-gravitational regime. In particular, the "fuzziness" of spacetime that arise from operational measurement protocols can be given a holographic dual interpretation using bulk-to-boundary correspondence between scalar correlators in asymptotically flat spacetimes. The holographic interpretation necessitates imperfect metric reconstruction even in principle due to the universality of future null infinity.

Related papers

• Quantum conformal symmetries for spacetimes in superposition [0.0]
  We build an explicit quantum operator that can map states describing a quantum field on a superposition of spacetimes to states representing a quantum field with a superposition of masses on a Minkowski background. It can be used to import the phenomenon of particle production in curved spacetime to its conformally equivalent counterpart, thus revealing new features in modified Minkowski spacetime.
  arXiv  Detail & Related papers  (2022-06-30T18:00:02Z)
• Modest holography and bulk reconstruction in asymptotically flat spacetimes [0.0]
  We present a "modest" holographic reconstruction of the bulk geometry in unrelatedally flat spacetime using the two-point correlators of quantum field theory (QFT) The bulk reconstruction relies on two results: (i) there is a bulk-to-boundary type correspondence between free quantum fields living in the bulk manifold and free quantum fields living on its null boundary, and (ii) one can construct the metric by making use of the Hadamard expansion of the field living in the bulk.
  arXiv  Detail & Related papers  (2022-04-27T18:00:56Z)
• Quantum dynamics corresponding to chaotic BKL scenario [62.997667081978825]
  Quantization smears the gravitational singularity avoiding its localization in the configuration space. Results suggest that the generic singularity of general relativity can be avoided at quantum level.
  arXiv  Detail & Related papers  (2022-04-24T13:32:45Z)
• The geometry of spacetime from quantum measurements [0.0]
  We show how one can recover the field's correlation function from measurements on the detectors. This suggest that quantum particle detectors are the experimentally accessible devices that could replace the classical 'rulers' and 'clocks' of general relativity.
  arXiv  Detail & Related papers  (2021-11-24T19:00:02Z)
• Bosonic field digitization for quantum computers [62.997667081978825]
  We address the representation of lattice bosonic fields in a discretized field amplitude basis. We develop methods to predict error scaling and present efficient qubit implementation strategies.
  arXiv  Detail & Related papers  (2021-08-24T15:30:04Z)
• Phase space holography with no strings attached [0.0]
  This note discusses the Wigner function representation from the standpoint of establishing a holography-like correspondence between the descriptions of a generic quantum system in the phase space ('bulk') picture versus its spacetime ('boundary') counterpart. This generic pseudo-holographic duality neither relies on any particular symmetry of the system in question, nor does it require any connection to an underlying'string theory', as in the various 'ad hoc' scenarios of applied holography.
  arXiv  Detail & Related papers  (2021-02-02T17:18:52Z)
• Quantum particle across Grushin singularity [77.34726150561087]
  We study the phenomenon of transmission across the singularity that separates the two half-cylinders. All the local realisations of the free (Laplace-Beltrami) quantum Hamiltonian are examined as non-equivalent protocols of transmission/reflection. This allows to comprehend the distinguished status of the so-called bridging' transmission protocol previously identified in the literature.
  arXiv  Detail & Related papers  (2020-11-27T12:53:23Z)
• The role of boundary conditions in quantum computations of scattering observables [58.720142291102135]
  Quantum computing may offer the opportunity to simulate strongly-interacting field theories, such as quantum chromodynamics, with physical time evolution. As with present-day calculations, quantum computation strategies still require the restriction to a finite system size. We quantify the volume effects for various $1+1$D Minkowski-signature quantities and show that these can be a significant source of systematic uncertainty.
  arXiv  Detail & Related papers  (2020-07-01T17:43:11Z)
• Quantum fluctuations of the compact phase space cosmology [0.0]
  This article applies effective methods to extract semi-classical regime of quantum dynamics. We find a nontrivial behavior of the fluctuations around the recollapse of the universe. An unexpected relation between the quantum fluctuations of the cosmological sector and the holographic Bousso bound is shown.
  arXiv  Detail & Related papers  (2020-03-18T10:08:11Z)
• Entropic Uncertainty Relations and the Quantum-to-Classical transition [77.34726150561087]
  We aim to shed some light on the quantum-to-classical transition as seen through the analysis of uncertainty relations. We employ entropic uncertainty relations to show that it is only by the inclusion of imprecision in our model of macroscopic measurements that we can prepare a system with two simultaneously well-defined quantities.
  arXiv  Detail & Related papers  (2020-03-04T14:01:17Z)
• Probing chiral edge dynamics and bulk topology of a synthetic Hall system [52.77024349608834]
  Quantum Hall systems are characterized by the quantization of the Hall conductance -- a bulk property rooted in the topological structure of the underlying quantum states. Here, we realize a quantum Hall system using ultracold dysprosium atoms, in a two-dimensional geometry formed by one spatial dimension. We demonstrate that the large number of magnetic sublevels leads to distinct bulk and edge behaviors.
  arXiv  Detail & Related papers  (2020-01-06T16:59:08Z)

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.