Varying Constants and Fundamental Cosmology – VARCOSMOFUN’16

Session

[QE] Quantum entanglement and many-worlds interpretation

2-QE

13 Sept 2016, 14:00

Room 6

Conveners

[QE] Quantum entanglement and many-worlds interpretation

• Sugumi Kanno

[QE] Quantum entanglement and many-worlds interpretation

• Sugumi Kanno

69. Cosmological implications of quantum entanglement in the multiverse

Sugumi Kanno

13/09/2016, 14:00

parallel

We explore the cosmological implications of quantum entanglement between two causally disconnected universes in the multiverse. We first consider two causally separated de Sitter spaces with a state which is initially entangled. We derive the reduced density matrix of our universe and compute the spectrum of vacuum fluctuations. We then consider the same system with an initially non-entangled...

117. Vacua and correlators on hyperbolic de Sitter sections

Jan Pieter van der Schaar (University of Amsterdam)

13/09/2016, 14:35

parallel

Keywords:

• Eternal inflation
• Bubble nucleation
• de Sitter space
• Entanglement

62. Quantum Discord in de Sitter spacetime

Prof. Jiro Soda (Kobe University)

13/09/2016, 15:10

parallel

Recently, quantum entanglement in the context of cosmology has been widely discussed. There are many quantities which characterize quantumness of a state.Among such quantities, quantum discord is often mentioned as the best one. In this talk, we discuss the quantum discord in de Sitter spacetime.

122. Observational Consequences of Scalar-tensor Entanglement During Inflation

Nadia Bolis (UC Davis)

13/09/2016, 16:10

parallel

We consider the effects of entanglement in the initial quantum state of scalar and tensor fluctuations during inflation. We allow the gauge-invariant scalar and tensor fluctuations to be entangled in the initial state and compute modifications to the various cosmological power spectra. We compute the angular power spectra ($C_l$’s) for some specific cases of our entangled state and discuss...

92. Bell violation in the Sky [talk via Skype]

Dr Sayantan Choudhury (Department of Theoretical Physics, Tata Institute of Fundamental Research, Mumbai)

13/09/2016, 16:55

parallel

In the present article, we have addressed the following points:

Firstly we have briefly reviewed Bell's inequality in quantum mechanics and its implications. For this we reviewed the proof of Bell's inequality.
Further we have discussed the violation of Bell's inequality in the context of quantum mechanics. Also we have given the explanation for such violation, which finally give rise to new...