publication . Article . 2018

Multistate and multihypothesis discrimination with open quantum systems

Alexander Holm Kiilerich; Klaus Mølmer;
Open Access English
  • Published: 14 May 2018
Abstract
We show how an upper bound for the ability to discriminate any number N of candidates for the Hamiltonian governing the evolution of an open quantum system may be calculated by numerically efficient means. Our method applies an effective master equation analysis to evaluate the pairwise overlaps between candidate full states of the system and its environment pertaining to the Hamiltonians. These overlaps are then used to construct an N -dimensional representation of the states. The optimal positive-operator valued measure (POVM) and the corresponding probability of assigning a false hypothesis may subsequently be evaluated by phrasing optimal discrimination of m...
Persistent Identifiers
Subjects
free text keywords: nanoqtech, rare earth, quantum technologies, Open quantum system, Physics, Statistical physics, Hamiltonian (quantum mechanics), symbols.namesake, symbols, Quantum state, Upper and lower bounds, POVM, Quantum, Statistical hypothesis testing, Master equation
Funded by
EC| NanOQTech
Project
NanOQTech
Nanoscale Systems for Optical Quantum Technologies
  • Funder: European Commission (EC)
  • Project Code: 712721
  • Funding stream: H2020 | RIA
Validated by funder
Communities
FET H2020FET OPEN: FET-Open research projects
FET H2020FET OPEN: Nanoscale Systems for Optical Quantum Technologies
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