000 | 05029nam a22005895i 4500 | ||
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001 | 978-3-642-01298-3 | ||
003 | DE-He213 | ||
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007 | cr nn 008mamaa | ||
008 | 100301s2009 gw | s |||| 0|eng d | ||
020 |
_a9783642012983 _9978-3-642-01298-3 |
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_a10.1007/978-3-642-01298-3 _2doi |
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050 | 4 | _aQC350-467 | |
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082 | 0 | 4 |
_a535.2 _223 |
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_a537.6 _223 |
100 | 1 |
_aBarchielli, Alberto. _eauthor. _4aut _4http://id.loc.gov/vocabulary/relators/aut |
|
245 | 1 | 0 |
_aQuantum Trajectories and Measurements in Continuous Time _h[electronic resource] : _bThe Diffusive Case / _cby Alberto Barchielli, Matteo Gregoratti. |
264 | 1 |
_aBerlin, Heidelberg : _bSpringer Berlin Heidelberg, _c2009. |
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300 |
_aXIV, 325 p. 30 illus. _bonline resource. |
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336 |
_atext _btxt _2rdacontent |
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337 |
_acomputer _bc _2rdamedia |
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338 |
_aonline resource _bcr _2rdacarrier |
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347 |
_atext file _bPDF _2rda |
||
490 | 1 |
_aLecture Notes in Physics, _x0075-8450 ; _v782 |
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505 | 0 | _aI General theory -- The Stochastic Schr#x00F6;dinger Equation -- The Stochastic Master Equation: Part I -- Continuous Measurements and Instruments -- The Stochastic Master Equation: Part II -- Mutual Entropies and Information Gain in Quantum Continuous Measurements -- II Physical applications -- Quantum Optical Systems -- A Two-Level Atom: General Setup -- A Two-Level Atom: Heterodyne and Homodyne Spectra -- Feedback. | |
520 | _aThis course-based monograph introduces the reader to the theory of continuous measurements in quantum mechanics and provides some benchmark applications. The approach chosen, quantum trajectory theory, is based on the stochastic Schrödinger and master equations, which determine the evolution of the a-posteriori state of a continuously observed quantum system and give the distribution of the measurement output. The present introduction is restricted to finite-dimensional quantum systems and diffusive outputs. Two appendices introduce the tools of probability theory and quantum measurement theory which are needed for the theoretical developments in the first part of the book. First, the basic equations of quantum trajectory theory are introduced, with all their mathematical properties, starting from the existence and uniqueness of their solutions. This makes the text also suitable for other applications of the same stochastic differential equations in different fields such as simulations of master equations or dynamical reduction theories. In the next step the equivalence between the stochastic approach and the theory of continuous measurements is demonstrated. To conclude the theoretical exposition, the properties of the output of the continuous measurement are analyzed in detail. This is a stochastic process with its own distribution, and the reader will learn how to compute physical quantities such as its moments and its spectrum. In particular this last concept is introduced with clear and explicit reference to the measurement process. The two-level atom is used as the basic prototype to illustrate the theory in a concrete application. Quantum phenomena appearing in the spectrum of the fluorescence light, such as Mollow’s triplet structure, squeezing of the fluorescence light, and the linewidth narrowing, are presented. Last but not least, the theory of quantum continuous measurements is the natural starting point to develop a feedback control theory in continuous time for quantum systems. The two-level atom is again used to introduce and study an example of feedback based on the observed output. | ||
650 | 0 | _aMathematics. | |
650 | 0 | _aQuantum theory. | |
650 | 0 | _aMathematical physics. | |
650 | 1 | 4 |
_aClassical Electrodynamics. _0http://scigraph.springernature.com/things/product-market-codes/P21070 |
650 | 2 | 4 |
_aApplications of Mathematics. _0http://scigraph.springernature.com/things/product-market-codes/M13003 |
650 | 2 | 4 |
_aQuantum Physics. _0http://scigraph.springernature.com/things/product-market-codes/P19080 |
650 | 2 | 4 |
_aMathematical Methods in Physics. _0http://scigraph.springernature.com/things/product-market-codes/P19013 |
650 | 2 | 4 |
_aQuantum Optics. _0http://scigraph.springernature.com/things/product-market-codes/P24050 |
650 | 2 | 4 |
_aComplex Systems. _0http://scigraph.springernature.com/things/product-market-codes/P33000 |
700 | 1 |
_aGregoratti, Matteo. _eauthor. _4aut _4http://id.loc.gov/vocabulary/relators/aut |
|
710 | 2 | _aSpringerLink (Online service) | |
773 | 0 | _tSpringer eBooks | |
776 | 0 | 8 |
_iPrinted edition: _z9783642012990 |
776 | 0 | 8 |
_iPrinted edition: _z9783642242489 |
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_iPrinted edition: _z9783642012976 |
830 | 0 |
_aLecture Notes in Physics, _x0075-8450 ; _v782 |
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856 | 4 | 0 | _uhttps://doi.org/10.1007/978-3-642-01298-3 |
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