Quantum Theory of Optical Temporal Phase in the Continuous Time Limit
We consider our recently proposed quantum theory of optical temporal phase in the continuous time limit.

The Cost of Erasing Information
Landauer has argued that the process of erasing 1 bit of information requires a minimum amount of work equal to kTln(2) where T is the temperature of a thermal reservoir that consumes the entropy of t...

AIP Conf. Proc. / Volume 1110 / Issue 1

Incoherently generated coherences

AIP Conf. Proc. -- April 13, 2009 -- Volume 1110, pp. 33-36
QUANTUM COMMUNICATION, MEASUREMENT AND COMPUTING (QCMC): Ninth International Conference on QCMC; doi:10.1063/1.3131343

Issue Date: 13 April 2009

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ABSTRACT

Raisa I. Karasik,^a Karl-Peter Marzlin,^b,c Barry C. Sanders,^c and K. Birgitta Whaley^a,d
^aApplied Science & Technology and Berkeley Quantum Information Center, University of California, Berkeley, California 94720, USA
^bDepartment of Physics, St Francis Xavier University, Antigonish, Nova Scotia B2G 2W5, Canada
^cInstitute for Quantum Information Science, University of Calgary, Calgary, Alberta T2N 1N4, Canada
^dDepartment of Chemistry, University of California, Berkeley, California 94720, USA

Wehave discovered that, in specific cases, decoherence due to theinteraction with the environment can be avoided by just introducinga special driving field for an open quantum system. Weshow that this phenomenon constitutes a new class of decoherence-freesubspaces which are useful for passive preservation of quantum informationand discuss a physical example. ©2009 American Institute of Physics

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