Dissipative fields in de Sitter and black hole spacetimes: quantum entanglement due to pair production and dissipation

  title={Dissipative fields in de Sitter and black hole spacetimes: quantum entanglement due to pair production and dissipation},
  author={Julian Adamek and Xavier Busch and Renaud Parentani},
  journal={Physical Review D},
For free fields, pair creation in expanding universes is associated with the building up of correlations that lead to nonseparable states, i.e., quantum mechanically entangled ones. For dissipative fields, i.e., fields coupled to an environment, there is a competition between the squeezing of the state and the coupling to the external bath. We compute the final coherence level for dissipative fields that propagate in a two-dimensional de Sitter space, and we characterize the domain in parameter… 

Figures from this paper

Dispersive and dissipative effects in quantum field theory in curved space-time to modelize condensed matter systems

The two main predictions of quantum field theory in curved space-time, namely Hawking radiation and cosmological pair production, have not been directly tested and involve ultra high energy

Entanglement from dissipation and holographic interpretation

In this work we study a dissipative field theory where the dissipation process is manifestly related to dynamical entanglement and put it in the holographic context. Such endeavour is realized by

Entanglement and out-of-equilibrium dynamics in holographic models of de Sitter QFTs

A bstractIn this paper we study various aspects of entanglement entropy in strongly- coupled de Sitter quantum field theories in various dimensions. We focus on gravity solutions that are dual to

Analogous Hawking radiation and quantum entanglement in two-component Bose-Einstein condensates: The gapped excitations

The condensates of cold atoms at zero temperature in the tunable binary Bose-Einstein condensate system are studied with the Rabi transition between atomic hyperfine states where the system can be

Entanglement in composite systems due to external influences

In this paper, we consider two examples of an entanglement in two-qubit systems and an example of entanglement in quantum field theory (QFT). In the beginning, we study the entanglement of two spin

The nonperturbative renormalization group for quantum field theory in de Sitter space

The study of cosmology draws us to the topic of quantum fields in curved space-time. In particular, light scalar fields offer a simple mechanism for inflation and primordial fluctuations. When

Entanglement and violation of classical inequalities in the Hawking radiation of flowing atom condensates

We consider a sonic black-hole scenario where an atom condensate flows through a subsonic–supersonic interface. We discuss several criteria that reveal the existence of non-classical correlations

Quantum entanglement due to a modulated dynamical Casimir effect

We study the creation and entanglement of quasiparticle pairs due to a periodic variation of the mode frequencies of a homogeneous quantum system. Depending on the values of the parameters describing



Optical Coherence and Quantum Optics

Preface 1. Elements of probability theory 2. Random (or stochastic) processes 3. Some useful mathematical techniques 4. Second-order coherence theory of scalar wavefields 5. Radiation from sources of

Measuring the quantum state of light

I and i

There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.


  • 031
  • 2007

Quantum Fields in Curved Space Cambridge Monographs on Mathematical Physics (Cambridge

  • 1984

and S

  • Finazzi, Phys.Rev. D85, 024021
  • 2012

and P

  • Spindel, Phys.Rev. D52, 4559
  • 1995

and U

  • Leonhardt, New J.Phys. 10, 053015
  • 2008

and D

  • Mattingly, Einstein-Aether theory
  • 2004

Annals Phys

  • 321, 150
  • 2006