Quantum system

Known as: Quantum systems 
A quantum system is a portion of the whole Universe (environment or physical world) which is taken under consideration to make analysis or to study… (More)
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1951-2018
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Highly Cited
2007
Highly Cited
2007
No quantum measurement can give full information on the state of a quantum system; hence any quantum feedback control problem is… (More)
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Highly Cited
2003
Highly Cited
2003
A two-dimensional quantum system with anyonic excitations can be considered as a quantum computer. Unitary transformations can be… (More)
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Highly Cited
2003
Highly Cited
2003
We present a classical protocol to efficiently simulate any pure-state quantum computation that involves only a restricted amount… (More)
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Highly Cited
2001
Highly Cited
2001
Decoherence is caused by the interaction with the environment which in effect monitors certain observables of the system… (More)
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Highly Cited
1999
Highly Cited
1999
(Received) We describe a quantum algorithm to compute the density of states and thermal equilibrium properties of quantum many… (More)
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Highly Cited
1996
Highly Cited
1996
Work on quantum cryptography was started by S. J. Wiesner in a paper written in about 1970, but remained unpublished until 1983… (More)
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Highly Cited
1996
Highly Cited
1996
A state acting on Hilbert space H1 ⊗ H2 is called separable if it can be approximated in trace norm by convex combinations of… (More)
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Highly Cited
1985
Highly Cited
1985
It is argued that underlying the Church-Turing hypothesis there is an implicit physical assertion. Here, this assertion is… (More)
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Highly Cited
1983
Highly Cited
1983
The fundamental mathematical definitions of the controlled feedback Markov dynamics of quantum-mechanical systems are introduced… (More)
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Highly Cited
1982
Highly Cited
1982
If a photon of definite polarization encounters an excited atom, there is typically some nonvanishing probability that the atom… (More)
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