Relativity of spacetime ontology: When correlations in space become correlata in time

• URL: http://arxiv.org/abs/2311.13879v1
• Date: Thu, 23 Nov 2023 09:58:50 GMT
• Title: Relativity of spacetime ontology: When correlations in space become correlata in time
• Authors: Marek Czachor and Marcin Nowakowski
• Abstract summary: We argue that correlat and correlationsa are not fundamentally distinct. Since the same quantum states may be either entangled or separable, a spatial correlation in one context can become a temporal correlatum in another.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Challenging Mermin's perspective that ``correlations have physical reality; that which they correlate does not'' we argue that correlations and correlata are not fundamentally distinct. These are dual concepts depending on the tensor product decomposition defining subsystems. Since the same quantum states may be either entangled or separable, but with respect to alternative tensor product structures, a spatial correlation in one context can become a temporal correlatum in another, and vice versa. In consequence, 2-qubit states invariant under $V\otimes V$ can be either entangled or unentangled, in conflict with the well known uniqueness theorem about the singlet state, a fact with possible implications for the quantum measurement theory.

Related papers

• Two-time quantities as elements of physical reality [41.94295877935867]
  We argue that a two-time correlator should actually be regarded as an average involving a novel single physical observable. We provide examples showing that the presumed constituents of a two-time correlator and the proposed two-time operator itself cannot be simultaneous elements of the physical reality.
  arXiv  Detail & Related papers  (2024-04-16T16:15:26Z)
• Real-time dynamics of false vacuum decay [49.1574468325115]
  We investigate false vacuum decay of a relativistic scalar field in the metastable minimum of an asymmetric double-well potential. We employ the non-perturbative framework of the two-particle irreducible (2PI) quantum effective action at next-to-leading order in a large-N expansion.
  arXiv  Detail & Related papers  (2023-10-06T12:44:48Z)
• Causal classification of spatiotemporal quantum correlations [0.0]
  We show that certain quantum correlations possess an intrinsic arrow of time, and enable classification of general quantum correlations across space-time. Our results indicate that certain quantum correlations possess an intrinsic arrow of time, and enable classification of general quantum correlations across space-time based on their (in)compatibility with various underlying causal structures.
  arXiv  Detail & Related papers  (2023-06-15T17:59:18Z)
• Quantum Causal Inference with Extremely Light Touch [0.0]
  We give an explicit quantum causal inference scheme using quantum observations alone. We derive a closed-form expression for the space-time pseudo-density matrix associated with many times and qubits. We prove that if there is no signalling between two subsystems, the associated reduced state of the pseudo-density matrix cannot have negativity.
  arXiv  Detail & Related papers  (2023-03-19T02:59:05Z)
• Physical interpretation of nonlocal quantum correlation through local description of subsystems [19.542805787744133]
  We propose the physical interpretation of nonlocal quantum correlation between two systems. Different nonlocal quantum correlations can be discriminated from a single uncertainty relation derived under local hidden state (LHS)-LHS model only.
  arXiv  Detail & Related papers  (2022-10-01T10:13:40Z)
• The Relational Interpretation of Quantum Physics [0.0]
  RQM's technical core is the realisation that quantum transition amplitudes determine physical probabilities only when their arguments are facts relative to the same system. RQM's technical core is the realisation that quantum transition amplitudes determine physical probabilities only when their arguments are facts relative to the same system.
  arXiv  Detail & Related papers  (2021-09-19T17:22:25Z)
• Equilibrium and nonequilibrium quantum correlations between two detectors in curved space time [9.793615002494237]
  We show the quantum information of two qubits is encoded in the space time structure. In nonequilibrium case, the nonequilibrium can also contribute to the correlations.
  arXiv  Detail & Related papers  (2021-08-24T00:33:57Z)
• Quantum Correlations in Space-Time: Foundations and Applications [2.7050061584406495]
  Correlations, as a measure of relationship between two quantities, do not distinguish space and time in classical probability theory. quantum correlations in space are well-studied but temporal correlations are not well understood. The thesis investigates quantum correlations in space-time, by treating temporal correlations equally in form of spatial correlations.
  arXiv  Detail & Related papers  (2021-01-21T16:12:28Z)
• Experimental study of quantum coherence decomposition and trade-off relations in a tripartite system [8.797280564220879]
  We study the full set of coherence trade-off relations between the original state, the bipartite product state, the tripartite product state, and the decohered product state. We find that despite the different types of states involved, the properties of the state in terms of coherence and monogamy are equivalent.
  arXiv  Detail & Related papers  (2020-11-16T15:44:58Z)
• Equivalence of approaches to relational quantum dynamics in relativistic settings [68.8204255655161]
  We show that the trinity' of relational quantum dynamics holds in relativistic settings per frequency superselection sector. We ascribe the time according to the clock subsystem to a POVM which is covariant with respect to its (quadratic) Hamiltonian.
  arXiv  Detail & Related papers  (2020-07-01T16:12:24Z)
• Quantum correlations in time [2.0373030742807545]
  We investigate quantum correlations in time in different approaches. With the exception of amplitude-weighted correlations in the path integral formalism, temporal correlations in the different approaches are the same or operationally equivalent.
  arXiv  Detail & Related papers  (2020-02-24T18:53:00Z)

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.