scholarly journals Open Quantum System Approach to the Gibbons-Hawking Effect of de Sitter Space-Time

2011 ◽  
Vol 106 (6) ◽  
Author(s):  
Hongwei Yu
Keyword(s):  
Quantum System ◽  
System Approach ◽  
Open Quantum System ◽  
De Sitter Space ◽  
Space Time ◽  
De Sitter ◽  
Hawking Effect ◽  
Open Quantum

scholarly journals Researching on Hawking Effect in a Kerr Space Time via Open Quantum System Approach

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Xian-Ming Liu ◽  
Wen-Biao Liu
Keyword(s):  
Quantum System ◽  
System Approach ◽  
Open Quantum System ◽  
Conformal Symmetry ◽  
Scalar Fields ◽  
Space Time ◽  
Massless Scalar ◽  
Hawking Effect ◽  
Open Quantum ◽  
Kerr Space

It has been proposed that Hawking radiation from a Schwarzschild or a de Sitter spacetime can be understood as the manifestation of thermalization phenomena in the framework of an open quantum system. Through examining the time evolution of a detector interacting with vacuum massless scalar fields, it is found that the detector would spontaneously excite with a probability the same as the thermal radiation at Hawking temperature. Following the proposals, the Hawking effect in a Kerr space time is investigated in the framework of an open quantum systems. It is shown that Hawking effect of the Kerr space time can also be understood as the the manifestation of thermalization phenomena via open quantum system approach. Furthermore, it is found that near horizon local conformal symmetry plays the key role in the quantum effect of the Kerr space time.

scholarly journals Quarkonium suppression in heavy-ion collisions: An open quantum system approach

2017 ◽  
Vol 96 (3) ◽  
Author(s):  
Nora Brambilla ◽  
Miguel A. Escobedo ◽  
Joan Soto ◽  
Antonio Vairo
Keyword(s):  
Quantum System ◽  
System Approach ◽  
Heavy Ion Collisions ◽  
Open Quantum System ◽  
Heavy Ion ◽  
Open Quantum ◽  
Ion Collisions

Electron capture and electron transport by fast ions penetrating solids: An open quantum system approach with sources and sinks

2007 ◽  
Vol 75 (3) ◽  
Author(s):  
Marek Seliger ◽  
Carlos O. Reinhold ◽  
Tatsuya Minami ◽  
David R. Schultz ◽  
Michael S. Pindzola ◽  
...  
Keyword(s):  
Electron Transport ◽  
Quantum System ◽  
Electron Capture ◽  
System Approach ◽  
Open Quantum System ◽  
Sources And Sinks ◽  
Open Quantum ◽  
Fast Ions

scholarly journals Non-Markovian open quantum system approach to the early Universe: Damping of gravitational waves by matter

2021 ◽  
Vol 104 (8) ◽  
Author(s):  
M. Zarei ◽  
N. Bartolo ◽  
D. Bertacca ◽  
S. Matarrese ◽  
A. Ricciardone
Keyword(s):  
Gravitational Waves ◽  
Quantum System ◽  
Early Universe ◽  
System Approach ◽  
Open Quantum System ◽  
Open Quantum

scholarly journals Relating the curvature of De Sitter universe to open quantum Lamb shift spectroscopy

2021 ◽  
Vol 81 (2) ◽  
Author(s):  
Hardik Bohra ◽  
Sayantan Choudhury ◽  
Prashali Chauhan ◽  
Purnima Narayan ◽  
Sudhakar Panda ◽  
...  
Keyword(s):  
Lamb Shift ◽  
Energy Levels ◽  
De Sitter Space ◽  
Space Time ◽  
Thermal Bath ◽  
Total System ◽  
De Sitter ◽  
Combined System ◽  
Open Quantum

AbstractIn this paper, we explore the connection between the curvature of the background De Sitter space-time with the spectroscopic study of entanglement of two atoms. Our set up is in the context of an Open Quantum System (OQS), where the two atoms, each having two energy levels and represented by Pauli spin tensor operators projected along any arbitrary direction. The system mimic the role of a pair of freely falling Unruh De-Witt detectors, which are allowed to non-adiabatically interact with a conformally coupled massless probe scalar field which has the role of background thermal bath. The effective dynamics of this combined system takes into account of the non-adiabatic interaction, which is commonly known as the Resonant Casimir Polder Interaction (RCPI) with the thermal bath. Our analysis revels that the RCPI of two stable entangled atoms in the quantum vacuum states in OQS depends on the de Sitter space-time curvature relevant to the temperature of the thermal bath felt by the static observer. We also find that, in OQS, RCPI produces a new significant contribution appearing in the effective Hamiltonian of the total system and thermal bath under consideration. We find that the Lamb shift is characterised by a decreasing inverse square power law behaviour, $$L^{-2}$$ L - 2 , when inter atomic Euclidean distance, L, is much larger than a characteristic length scale, k, which is the inverse surface gravity of the background De Sitter space. If the background space time would have been Minkowskian this shift decreases as, $$L^{-1}$$ L - 1 , and is independent of temperature. Thus, we establish a connection between the curvature of the De Sitter space-time with the Lamb shift spectroscopy.

Hawking effect of Dirac particles in Vaidya-Schwarzschild-de Sitter space-time

1993 ◽  
Vol 2 (3) ◽  
pp. 161-169
Author(s):  
Yang Cheng-quan ◽  
Ren Qin-an ◽  
Zhao Zheng
Keyword(s):  
De Sitter Space ◽  
Space Time ◽  
De Sitter ◽  
Hawking Effect ◽  
Dirac Particles

scholarly journals Entanglement transfer from electrons to photons in quantum dots: an open quantum system approach

2010 ◽  
Vol 21 (27) ◽  
pp. 274001 ◽  
Author(s):  
Jan C Budich ◽  
Björn Trauzettel
Keyword(s):  
Quantum Dots ◽  
Quantum System ◽  
System Approach ◽  
Open Quantum System ◽  
Open Quantum ◽  
Entanglement Transfer

scholarly journals An open quantum system approach to the radical pair mechanism

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Betony Adams ◽  
Ilya Sinayskiy ◽  
Francesco Petruccione
Keyword(s):  
Quantum System ◽  
System Approach ◽  
Open Quantum System ◽  
Radical Pair ◽  
Radical Pair Mechanism ◽  
Open Quantum

An open quantum system approach to the evolution of entanglement in systems

2007 ◽  
Vol 363 (5-6) ◽  
pp. 389-391 ◽  
Author(s):  
Paweł Caban ◽  
Jakub Rembieliński ◽  
Kordian A. Smoliński ◽  
Zbigniew Walczak
Keyword(s):  
Quantum System ◽  
System Approach ◽  
Open Quantum System ◽  
Open Quantum
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