UID:
almafu_9959232690202883
Format:
1 online resource (xii, 327 pages) :
,
digital, PDF file(s).
ISBN:
1-107-22348-2
,
1-280-48478-0
,
1-139-22182-5
,
9786613579768
,
1-139-21700-3
,
1-139-21393-8
,
1-139-22353-4
,
1-139-22010-1
,
1-139-03110-4
Content:
For almost every student of physics, the first course on quantum theory raises a lot of puzzling questions and creates a very uncertain picture of the quantum world. This book presents a clear and detailed exposition of the fundamental concepts of quantum theory: states, effects, observables, channels and instruments. It introduces several up-to-date topics, such as state discrimination, quantum tomography, measurement disturbance and entanglement distillation. A separate chapter is devoted to quantum entanglement. The theory is illustrated with numerous examples, reflecting recent developments in the field. The treatment emphasises quantum information, though its general approach makes it a useful resource for graduate students and researchers in all subfields of quantum theory. Focusing on mathematically precise formulations, the book summarises the relevant mathematics.
Note:
Title from publisher's bibliographic system (viewed on 05 Oct 2015).
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Cover; THE MATHEMATICAL LANGUAGE OF QUANTUM THEORY; Series; Title; Copyright; Contents; Preface; Introduction; 1: Hilbert space refresher; 1.1: Hilbert spaces; 1.1.1 Finite- and infinite-dimensional Hilbert spaces; 1.1.2 Basis expansion; 1.1.3 Example: L2(O); 1.2: Operators on Hilbert spaces; 1.2.1 The C*-algebra of bounded operators; 1.2.2 Partially ordered vector space of selfadjoint operators; 1.2.3 Orthocomplemented lattice of projections; 1.2.4 Group of unitary operators; 1.2.5 Ideal of trace class operators; 1.3: Additional useful mathematics; 1.3.1 Weak operator topology
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1.3.2 Dirac notation and rank-1 operators1.3.3 Spectral and singular-value decompositions; 1.3.4 Linear functionals and dual spaces; 1.3.5 Tensor product; 2: States and effects; 2.1: Duality of states and effects; 2.1.1 Basic statistical framework; 2.1.2 State space; 2.1.3 State space for a finite-dimensional system; 2.1.4 From states to effects; 2.1.5 From effects to states; 2.1.6 Dispersion-free states and Gleason's theorem; 2.2: Superposition structure of pure states; 2.2.1 Superposition of two pure states; 2.2.2 Interference; 2.3: Symmetry; 2.3.1 Unitary and antiunitary transformations
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2.3.2 State automorphisms2.3.3 Pure state automorphisms and Wigner's theorem; 2.4: Composite systems; 2.4.1 System versus subsystems; 2.4.2 State purification; 3: Observables; 3.1: Observables as positive operator-valued measures; 3.1.1 Definition and basic properties of observables; 3.1.2 Observables and statistical maps; 3.1.3 Discrete observables; 3.1.4 Real observables; 3.1.5 Mixtures of observables; 3.1.6 Coexistence of effects; 3.2: Sharp observables; 3.2.1 Projection-valued measures; 3.2.2 Sharp observables and selfadjoint operators; 3.2.3 Complementary observables
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3.3: Informationally complete observables3.3.1 Informational completeness; 3.3.2 Symmetric informationally complete observables; 3.3.3 State estimation; 3.4: Testing quantum systems; 3.4.1 Complete versus incomplete information; 3.4.2 Unambiguous discrimination of states; 3.4.3 How distinct are two states?; 3.5: Relations between observables; 3.5.1 State distinction and state determination; 3.5.2 Coarse-graining; 3.6: Example: photon-counting observables; 3.6.1 Single-mode electromagnetic field; 3.6.2 Nonideal photon-counting observables; 4: Operations and channels
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4.1: Transforming quantum systems4.1.1 Operations and complete positivity; 4.1.2 Schrödinger versus Heisenberg picture; 4.2: Physical model of quantum channels; 4.2.1 Isolated versus open systems; 4.2.2 Stinespring's dilation theorem; 4.2.3 Operator-sum form of channels; 4.3: Elementary properties of quantum channels; 4.3.1 Mixtures of channels; 4.3.2 Concatenating channels; 4.3.3 Disturbance and noise; 4.3.4 Conjugate channels; 4.4: Parametrizations of quantum channels; 4.4.1 Matrix representation; 4.4.2 The ?-matrix representation; 4.4.3 Choi-Jamiolkowski isomorphism
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4.5: Special classes of channels
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English
Additional Edition:
ISBN 0-521-19583-7
Language:
English
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