Entanglement of particles versus entanglement of fields: independent quantum resources

• URL: http://arxiv.org/abs/2204.06245v3
• Date: Wed, 3 May 2023 09:42:09 GMT
• Title: Entanglement of particles versus entanglement of fields: independent quantum resources
• Authors: Jan Sperling and Elizabeth Agudelo
• Abstract summary: We show that particle entanglement and field entanglement are actually distinct phenomena that can occur and be observed independently of each other. This conclusion has direct implications for quantum technology which can harness those independent forms of entanglement in practical scenarios.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Nature allows one to explore a manifold of remarkable quantum effects. Most prominently, quantum entanglement can be observed in many-particle systems, between multiple quantized fields, and in hybrid combinations thereof. This diversity, however, also leads to contradicting conclusions about what truly constitutes entanglement in any given physical scenario. By explicitly allowing various perspectives, we rigorously consider different notions of entanglement in the context of first and second quantization. By providing instructive examples, we show that particle entanglement and field entanglement are actually distinct phenomena that can occur and be observed independently of each other. This conclusion not only affects our fundamental understanding but has direct implications for quantum technology which can harness those independent forms of entanglement in practical scenarios.

Related papers

• Antiparticles in non-relativistic quantum mechanics [55.2480439325792]
  Non-relativistic quantum mechanics was originally formulated to describe particles. We show how the concept of antiparticles can and should be introduced in the non-relativistic case without appealing to quantum field theory.
  arXiv  Detail & Related papers  (2024-04-02T09:16:18Z)
• Hyperfine Structure of Quantum Entanglement [8.203995433574182]
  We introduce the textithyperfine structure of entanglement, which dissects entanglement contours known as the fine structure into particle-number cumulants. Our findings suggest experimental accessibility, offering fresh insights into quantum entanglement across physical systems.
  arXiv  Detail & Related papers  (2023-11-03T15:49:56Z)
• Quantitative bounds to propagation of quantum correlations in many-body systems [0.0]
  We establish limits to bipartite quantum correlations in many-body systems. Results confirm that proliferation of classical information in the Universe suppresses quantum correlations.
  arXiv  Detail & Related papers  (2023-10-04T00:24:06Z)
• Three-body Entanglement in Particle Decays [0.0]
  We introduce a novel approach for three-particle systems by utilising the principles of entanglement monotone concurrence and the monogamy property. This work paves the way for new insights into particle physics through multi-particle quantum entanglement, particularly in decays of heavy fermions and hadrons.
  arXiv  Detail & Related papers  (2023-10-02T18:00:00Z)
• The Many Inconsistencies of the Purity-Mixture Distinction in Standard Quantum Mechanics [0.0]
  The distinction between pure states and mixed states is a kernel ingredient of what is considered to be the standard formulation of quantum mechanics. In this work we attempt to expose the many inconsistencies introduced by this distinction and the serious consequences this has for many ongoing research programs within quantum physics.
  arXiv  Detail & Related papers  (2022-08-22T20:03:25Z)
• Genuine multipartite entanglement and quantum coherence in an electron-positron system: Relativistic covariance [117.44028458220427]
  We analyze the behavior of both genuine multipartite entanglement and quantum coherence under Lorentz boosts. A given combination of these quantum resources is shown to form a Lorentz invariant.
  arXiv  Detail & Related papers  (2021-11-26T17:22:59Z)
• Quantum coherence with incomplete set of pointers and corresponding wave-particle duality [0.0]
  Quantum coherence quantifies the amount of superposition in a quantum system. We develop the corresponding resource theory, identifying the free states and operations. We obtain a complementarity relation between the so-defined quantum coherence and the which-path information in an interferometric set-up.
  arXiv  Detail & Related papers  (2021-08-12T16:55:40Z)
• Quantum indistinguishability through exchangeable desirable gambles [69.62715388742298]
  Two particles are identical if all their intrinsic properties, such as spin and charge, are the same. Quantum mechanics is seen as a normative and algorithmic theory guiding an agent to assess her subjective beliefs represented as (coherent) sets of gambles. We show how sets of exchangeable observables (gambles) may be updated after a measurement and discuss the issue of defining entanglement for indistinguishable particle systems.
  arXiv  Detail & Related papers  (2021-05-10T13:11:59Z)
• Simulation of Collective Neutrino Oscillations on a Quantum Computer [117.44028458220427]
  We present the first simulation of a small system of interacting neutrinos using current generation quantum devices. We introduce a strategy to overcome limitations in the natural connectivity of the qubits and use it to track the evolution of entanglement in real-time.
  arXiv  Detail & Related papers  (2021-02-24T20:51:25Z)
• Preferred basis, decoherence and a quantum state of the Universe [77.34726150561087]
  We review a number of issues in foundations of quantum theory and quantum cosmology. These issues can be considered as a part of the scientific legacy of H.D. Zeh.
  arXiv  Detail & Related papers  (2020-06-28T18:07:59Z)
• Quantum Hall phase emerging in an array of atoms interacting with photons [101.18253437732933]
  Topological quantum phases underpin many concepts of modern physics. Here, we reveal that the quantum Hall phase with topological edge states, spectral Landau levels and Hofstadter butterfly can emerge in a simple quantum system. Such systems, arrays of two-level atoms (qubits) coupled to light being described by the classical Dicke model, have recently been realized in experiments with cold atoms and superconducting qubits.
  arXiv  Detail & Related papers  (2020-03-18T14:56:39Z)

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.