Results 41 to 50 of about 9,805 (195)
Quantum filtering using POVM measurements [PDF]
52nd IEEE Conference on Decision and Control, 2013 6 Pages, Accepted to CDC ...
Somaraju, Ram Abhinav +2 more
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Bell's inequality without alternative settings [PDF]
, 2002 A suitable generalized measurement described by a 4-element positive operator-valued measure (POVM) on each particle of a two-qubit system in the singlet state is, from the point of view of Einstein, Podolsky, and Rosen's (EPR's) criterion of elements of
Adán Cabello +40 more
core +2 more sources
Adaptive State Fidelity Estimation for Higher Dimensional Bipartite Entanglement
Entropy, 2020 An adaptive method for quantum state fidelity estimation in bipartite higher dimensional systems is established. This method employs state verifier operators which are constructed by local POVM operators and adapted to the measurement statistics in the ...
Jun-Yi Wu
doaj +1 more source
Equivalence of Approaches to Relational Quantum Dynamics in Relativistic Settings
Frontiers in Physics, 2021 We have previously shown that three approaches to relational quantum dynamics—relational Dirac observables, the Page-Wootters formalism and quantum deparametrizations—are equivalent.
Philipp A. Höhn +4 more
doaj +1 more source
Sensing with quantum light: a perspective. [PDF]
NanophotonicsAbstract I present my perspective on sensing with quantum light. I summarise the motivations and methodology for identifying quantum enhancements in sensing over a classical sensor. In the real world, this enhancement will be a constant factor and not increase with the size of the quantum probe as is often advertised.
Datta A.
europepmc +2 more sources
On SIC-POVMs in prime dimensions [PDF]
Journal of Physics A: Mathematical and General, 2006 6 pages, no figures. v3 Refs added, improved discussion of previous work.
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SIC-POVMs and the Stark Conjectures [PDF]
International Mathematics Research Notices, 2019 Abstract The existence of $d^2$ pairwise equiangular complex lines [equivalently, a symmetric informationally complete positive operator-valued measure (SIC-POVM)] in $d$-dimensional Hilbert space is known only for finitely many dimensions $d$. We prove that, if there exists a set of real units in a certain ray class field (depending on $
openaire +2 more sources
Device-independent characterization of quantum instruments [PDF]
Quantum, 2020 Among certification techniques, those based on the violation of Bell inequalities are appealing because they do not require assumptions on the underlying Hilbert space dimension and on the accuracy of calibration methods.
Sebastian Wagner +3 more
doaj +1 more source
Clean positive operator valued measures for qubits and similar cases [PDF]
, 2007 In a recent paper, Buscemi and al. defined a notion of clean positive operator valued measures (POVMs). We here characterize which POVMs are clean in some class that we call quasi-qubit POVMs, namely POVMs whose elements are all rank-one or full-rank. We
Kahn, Jonas
core +1 more source
Minimal Informationally Complete Measurements for Pure States
, 2004 We consider measurements, described by a positive-operator-valued measure (POVM), whose outcome probabilities determine an arbitrary pure state of a D-dimensional quantum system.
A. Peres +15 more
core +1 more source