18. DECOHERENCE STUDIES

Emergence of coherence and the dynamics of quantum phase transitions

Date: 
2014-03-27 - 2014-10-23
Author(s): 

S. Braun, M. Friesdorf, S.S. Hodgman, M. Schreiber, J.P. Ronzheimer, A. Riera, M. del Rey, I. Bloch, J. Eisert, U. Schneider

Reference: 

arXiv:1403.7199

Quantum Non-Markovianity: Characterization, Quantification and Detection

Date: 
2014-05-16 - 2014-08-21
Author(s): 

Á. Rivas, S. F. Huelga, M. B. Plenio

Reference: 

Reports on Progress in Physics, Volume 77, Number 9

We present a comprehensive and up to date review on the concept of quantum non-Markovianity, a central theme in the theory of open quantum systems. We introduce the concept of quantum Markovian process as a generalization of the classical definition of Markovianity via the so-called divisibility property and relate this notion to the intuitive idea that links non-Markovianity with the persistence of memory effects. A detailed comparison with other definitions presented in the literature is provided.

Chemical Compass Model for Avian Magnetoreception as a Quantum Coherent Device

Date: 
2013-05-12 - 2013-12-04
Author(s): 

J.M. Cai and M.B. Plenio

Reference: 

Physical Review Letters 111, 230503 (2013)

It is known that more than 50 species use the Earth’s magnetic field for orientation and navigation. Intensive studies, particularly behavior experiments with birds, provide support for a chemical compass based on magnetically sensitive free radical reactions as a source of this sense. However, the fundamental question of how quantum coherence plays an essential role in such a chemical compass model of avian magnetoreception yet remains controversial.

Spin Self-Rephasing and Very Long Coherence Times in a Trapped Atomic Ensemble

Date: 
2010-07-06
Author(s): 

C. Deutsch, F. Ramirez-Martinez, C. Lacroûte, F. Reinhard, T. Schneider, J.N. Fuchs, F. Piéchon, F. Laloë, J. Reichel, P. Rosenbush

Reference: 

Phys. Rev. Lett. 105 020401 (2010)

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