{"product_id":"negative-quantum-channels-von-james-m-mccracken","title":"Negative Quantum Channels","description":"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.\n\nTable 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\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783031013898\"\u003e\u003ch3\u003e\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783031013898","offer_id":40172321308765,"sku":"9783031013898","price":42.79,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/f2e44a77-fc02-424e-ae49-1b18b36c34f3.jpg?v=1772169570","url":"https:\/\/shop.autorenwelt.de\/en\/products\/negative-quantum-channels-von-james-m-mccracken","provider":"Autorenwelt Shop","version":"1.0","type":"link"}