Quantum information and computing / editors, L. Accardi, M. Ohya and N. Watanabe.

Format:

Book

Contributor:

Accardi, L. (Luigi), 1947-

Ohya, Masanori, 1947-

Watanabe, N. (Noboru), 1938-

Series:

QP-PQ, quantum probability and white noise analysis ; v. 19.

QP-PQ, quantum probability and white noise analysis ; 19

Language:

English

Subjects (All):

Quantum computers--Congresses.

Quantum computers.

Quantum theory--Congresses.

Quantum theory.

Physical Description:

1 online resource (396 p.)

Edition:

1st ed.

Place of Publication:

Singapore ; Hackensack, N.J. : World Scientific, c2006.

Language Note:

English

Summary:

The main purpose of this volume is to emphasize the multidisciplinary aspects of this very active new line of research in which concrete technological and industrial realizations require the combined efforts of experimental and theoretical physicists, mathematicians and engineers. <br><i>Contents:</i><ul><li>Coherent Quantum Control of Λ-Atoms through the Stochastic Limit <i>(L Accardi et al.)</i></li><li>Recent Advances in Quantum White Noise Calculus <i>(L Accardi & A Boukas)</i></li><li>Joint Extension of States of Fermion Subsystems <i>(H Araki)</i></li><li>Fidelity of Quantum Teleportati

Contents:

Contents ; Preface ; Coherent Quantum Control of A-Atoms through the Stochastic Limit ; 1 Introduction ; 2 An atom in a laser field ; 3 The stochastic limit ; 4 The quantum master equation ; 5 Stationary states for a two-level atom ; 6 Stationary states for a three-level atom

7 Three-level lambda-atom 8 Two-level 3-times degenerate atom ; 9 Conclusions ; References ; Recent Advances in Quantum White Noise Calculus ; 1 Emergence of white noise equations from classical quantum mechanics ; 2 Quantum white noise unitary evolutions

3 Higher powers of white noise 4 Appplications to quantum stochastic control ; References ; Control of Quantum States by Decoherence ; 1 Introduction ; 2 A master equation driving to a pre-assigned state ; 3 A microscopic model ; 4 The Master equation ; 5 Assimilation of the state

6 Purification 7 Example: Entangled state with Spin-Boson model ; References ; Logical Operations Realized on the Ising Chain of N Qubits ; Joint Extension of States of Fermion Subsystems ; 1 Introduction ; 2 Notation for Fermion Systems ; 3 Product Extension

4 A Pair of Pure and General States for Two Subsystems 5 Examples ; References ; Quantum Filtering and Optimal Feedback Control of a Gaussian Quantum Free Particle ; 1 Inroduction ; 2 The Model ; 3 Quantum Filtering ; 4 Control ; 5 Discussion ; References

On Existence of Quantum Zeno Dynamics

Notes:

Includes bibliographical references.

Papers presented at the international conference on "Quantum Information 2003" held at various locations in Japan.

ISBN:

9786611379162

9781281379160

1281379166

9789812774491

9812774491

OCLC:

748527955