2008
Process positive operator valued measure: A mathematical framework for the description of process tomography experiments
ZIMAN, MárioBasic information
Original name
Process positive operator valued measure: A mathematical framework for the description of process tomography experiments
Name in Czech
Procesové POVM: Matematický nástroj pro popis experimentů procesové tomografie
Authors
ZIMAN, Mário (703 Slovakia, guarantor)
Edition
Physical Review A, 2008, 1050-2947
Other information
Language
English
Type of outcome
Article in a journal
Field of Study
10201 Computer sciences, information science, bioinformatics
Country of publisher
United States of America
Confidentiality degree
is not subject to a state or trade secret
References:
Impact factor
Impact factor: 2.908
RIV identification code
RIV/00216224:14330/08:00025145
Organization unit
Faculty of Informatics
UT WoS
000257288800034
Keywords in English
Process POVM
Tags
Tags
International impact, Reviewed
Changed: 22/5/2009 19:15, RNDr. Ivan Fialík, Ph.D.
In the original language
In this paper we shall introduce the mathematical framework for the description of measurements of quantum processes. Using this framework the process estimation problems can be treated in the similar way as the state estimation problems, only replacing the concept of positive operator valued measure (POVM) by the concept of process POVM (PPOVM). In particular, we will show that any measurement of qudit channels can be described by a collection of effects (positive operators) defined on two-qudit system. However, the effects forming a PPOVM are not normalized in the usual sense. We will demonstrate the usage of this formalism in discrimination problems by showing that perfect channel discrimination is equivalent to a specific unambiguous state discrimination.
In Czech
Článek uvádí matematický formalismus pro popis měření kvantových procesů.
Links
| GA201/07/0603, research and development project |
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| MSM0021622419, plan (intention) |
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