Results 11 to 20 of about 9,805 (195)
Positive-Operator Valued Measure (POVM) Quantization [PDF]
Axioms, 2014 We present a general formalism for giving a measure space paired with a separable Hilbert space a quantum version based on a normalized positive operator-valued measure.
Jean Pierre Gazeau, Barbara Heller
doaj +7 more sources
, 2004 We consider the convex set of positive operator valued measures (POVM) which are covariant under a finite dimensional unitary projective representation of a group.
Giacomo Mauro D’Ariano +2 more
core +3 more sources
Implementation of Classical Communication in a Quantum World
Information, 2012 Observations of quantum systems carried out by finite observers who subsequently communicate their results using classical data structures can be described as “local operations, classical communication” (LOCC) observations.
Chris Fields
doaj +5 more sources
Journal of Veterinary Internal MedicineBackground Dexamethasone is routinely administered to horses but its effect on the antibody response to a commercial EIV/EHV vaccine is unclear. Hypothesis Horses receiving dexamethasone will have lower postvaccination antibody levels against EIV and EHV‐
Nicole Kreutzfeldt +4 more
doaj +2 more sources
SIC-POVMs and Compatibility among Quantum States [PDF]
Mathematics, 2016 An unexpected connection exists between compatibility criteria for quantum states and Symmetric Informationally Complete quantum measurements (SIC-POVMs). Beginning with Caves, Fuchs and Schack’s "Conditions for compatibility of quantum state assignments"
Blake C. Stacey
doaj +3 more sources
Experimental Joint Estimation of Phase and Phase Diffusion Via Deterministic Bell Measurements. [PDF]
Adv Sci (Weinh)This work employs Bell measurement, a form of entangling measurement, to estimate both the phase and its fluctuations in an optical interferometer. By incorporating a novel quantum effect at the measurement stage, the proposed method achieves the ultimate precision limit and demonstrates the significant potential of entangling measurements in multi ...
Wang B, Mi M, Wang H, Xie Q, Zhang L.
europepmc +2 more sources
Lüders theorem for coherent-state POVMs [PDF]
Journal of Mathematical Physics, 2003 Lüders’ theorem states that two observables commute if measuring one of them does not disturb the measurement outcomes of the other. We study measurements which are described by continuous positive operator-valued measurements (or POVMs) associated with coherent states on Lie groups.
Weigert, Stefan, Busch, Paul
openaire +2 more sources
Improving quantum metrology protocols with programmable photonic circuits. [PDF]
NanophotonicsAbstract Photonic quantum metrology enables the measurement of physical parameters with precision surpassing classical limits by using quantum states of light. However, generating states providing a large metrological advantage is hard because standard probabilistic methods suffer from low generation rates.
de Las Heras AM +2 more
europepmc +2 more sources
Commutative POVMs and Fuzzy Observables [PDF]
Foundations of Physics, 2009 In this paper we review some properties of fuzzy observables, mainly as realized by commutative positive operator valued measures. In this context we discuss two representation theorems for commutative positive operator valued measures in terms of projection valued measures and describe, in some detail, the general notion of fuzzification. We also make
S. T. Ali +3 more
openaire +4 more sources
Ancilla-free implementation of generalized measurements for qubits embedded in a qudit space
Physical Review Research, 2022 Informationally complete (IC) positive operator-valued measures (POVMs) are generalized quantum measurements that offer advantages over the standard computational basis readout of qubits.
Laurin E. Fischer +5 more
doaj +1 more source