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Anotace knihy

This book is a brief introduction to negative quantum channels, i.e., linear, trace-preserving (and consistent) quantum maps that are not completely positive. The flat and sharp operators are introduced and explained. Complete positivity is presented as a mathematical property, but it is argued that complete positivity is not a physical requirement of all quantum operations. Negativity, a measure of the lack of complete positivity, is proposed as a tool for empirically testing complete positivity assumptions.Table of Contents: Preface / Acknowledgments / Introduction and Definition of Terms / Tomography / Non-Positive Reduced Dynamics / Complete Positivity / Physical Motivation of Complete Positivity / Measures of Complete Positivity / Negative Channels / Negative Climates with Diagonal Composite Dynamics / Rabi Channels / Physical Motivations for Sharp Operations / Negative Qubit Channel Examples with Multi-Qubit Baths / Proposed Experimental Demonstration of Negativity / Implications of Negative Channels / Uses for Negative Channels / Conclusions / Bibliography / Author's Biography

Parametry knihy

Zařazení knihy Knihy v němčině Naturwissenschaften, Medizin, Informatik, Technik Mathematik Mathematik - Sonstiges

• Plný název: Negative Quantum Channels
• Autor: McCracken, James M.
• Jazyk: Angličtina
• Vazba: Brožovaná
• Počet stran: 171
• EAN: 9783031013898
• ISBN: 3031013891
• ID: 39295063
• Nakladatelství: Springer International Publishing AG
• Hmotnost: 365 g
• Rozměry: 235 × 191 × 11 mm
• Datum vydání: 11. July 2014

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