1.

Record Nr.

UNINA9910954258903321

Titolo

Proceedings of the 7th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology : ISQM--Tokyo '01 : Advanced Research Laboratory, Hitachi, Ltd., Hatoyama, Saitama, Japan, 27-30 August 2001 / / edited by Yoshimasa A. Ono, Kazuo Fujikawa

Pubbl/distr/stampa

River Edge, N.J., : World Scientific, c2002

ISBN

9786611929299

9781281929297

1281929298

9789812776716

9812776710

Edizione

[1st ed.]

Descrizione fisica

1 online resource (348 p.)

Altri autori (Persone)

OnoYoshimasa A

FujikawaK

Disciplina

530.12

Soggetti

Quantum theory

Physics

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

CONTENTS; Preface; Committees; Opening Address; Welcoming Address; QUANTUM COMPUTING; 1. Decoherence and dephasing in spin-based solid state quantum computers; 1 Introduction; 2 Decoherence in a two level system

3 Measuring T1 T2 and T'2 of electron spins in semiconductors  4 Decoherence in a quantum dot quantum computer; 5 Mesoscopic decoherence;  References; 2. Quantum-state manipulations in a Cooper-pair box; 1 Introduction; 2 Experiment; 3 Results and Discussions; 4 Conclusion

References 3. Quantum state engineering and Josephson junctions: Charge and flux detectors; 1 Introduction; 2 Linear amplifiers and the master equation; 3 Efficiency of a quantum detector; 4 Dephasing in the off-state; References

4. Multiple sige quantum dots for quantum computation 1 Introduction;



2 Device Layout; 3 Measurements at 4.2 K ; 4 Electrometer measurements at 20 mK; References; 5. Decoherences in strongly interacting qubits; 1 Introduction

2 Quantum error correction and Decoherence-Free Subspace 3 Decoherence caused by the environment; 4 Decoherences in strongly interacting coupled qubits; 5 Conclusion; References; 6. Dephasing of a qubit coupled with a point-contact detector; References

7. Quantum gates in capacitively coupled quantum dots and measurement procedure

Sommario/riassunto

This book discusses fundamental problems in quantum physics, with emphasis on quantum coherence and decoherence. Papers covering the wide range of quantum physics are included: atom optics, quantum optics, quantum computing, quantum information, cryptography, macroscopic quantum phenomena, mesoscopic physics, physics of precise measurements, and fundamental problems in quantum physics.  The book will serve not only as a good introduction to quantum coherence and decoherence for newcomers in this field, but also as a reference for experts. Contents: Quantum Computing