A Measure Theoretical Approach to Quantum Stochastic Processes

Paperback Engels 2013 2014e druk 9783642450815
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Samenvatting

This monograph takes as starting point that abstract quantum stochastic processes can be understood as a quantum field theory in one space and in one time coordinate. As a result it is appropriate to represent operators as power series of creation and annihilation operators in normal-ordered form, which can be achieved using classical measure theory.

Considering in detail four basic examples (e.g. a two-level atom coupled to a heat bath of oscillators), in each case the Hamiltonian of the associated one-parameter strongly continuous group is determined and the spectral decomposition is explicitly calculated in the form of generalized eigen-vectors.

Advanced topics include the theory of the Hudson-Parthasarathy equation and the amplified oscillator problem. To that end, a chapter on white noise calculus has also been included.

Specificaties

ISBN13:9783642450815
Taal:Engels
Bindwijze:paperback
Aantal pagina's:228
Uitgever:Springer Berlin Heidelberg
Druk:2014

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Inhoudsopgave

<p>Weyl Algebras.- Continuous Sets of Creation and Annihilation Operators.- One-Parameter Groups.- Four Explicitly Calculable One-Excitation Processes.- White Noise Calculus.- Circled Integrals.- White Noise Integration.- The Hudson-Parthasarathy Differential Equation.- The Amplifies Oscillator.- Approximation by Coloured Noise.- Index.</p>

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        A Measure Theoretical Approach to Quantum Stochastic Processes