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
Produktkennzeichnungen
ISBN-10
1627051848
ISBN-13
9781627051842
eBay Product ID (ePID)
202831172
Produkt Hauptmerkmale
Sprache
Englisch
Anzahl der Seiten
188 Seiten
Verlag
Morgan & Claypool Publishers
Publikationsname
Negative Quantum Channels
Autor
James M. Mccracken
Format
Taschenbuch
Erscheinungsjahr
2014
Zusätzliche Produkteigenschaften
Hörbuch
No
Inhaltsbeschreibung
Paperback
Item Length
23cm
Item Height
10mm
Item Width
19cm
Item Weight
363g
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