Results 61 to 70 of about 9,805 (195)

Advancing Quantum Process Tomography Through Quantum Compilation

Advanced Quantum Technologies, Volume 9, Issue 2, February 2026.
A compilation‐based quantum process tomography (CQPT) framework is introduced for efficient characterization of noisy quantum dynamics. The method reconstructs quantum processes using single‐shot measurements and trainable process representations, avoiding full POVM tomography.
Huynh Le Dan Linh, Vu Tuan Hai, Le Bin Ho   +2 more
wiley   +1 more source

Group theoretical classification of SIC-POVMs

Journal of Physics A: Mathematical and Theoretical
Abstract The Symmetric Informationally Complete Positive Operator-Valued Measures (SIC-POVMs) are known to exist in all dimensions ⩽ 151 and many larger dimensions as high as
S B Samuel, Z Gedik
openaire   +4 more sources

Concurrence classes for an arbitrary multi-qubit state based on positive operator valued measure

, 2005
In this paper, we propose concurrence classes for an arbitrary multi-qubit state based on orthogonal complement of a positive operator valued measure, or POVM in short, on quantum phase.
Akhtarshenas S J, Albeverio S, Bhaktavatsala Rao D D Ravishankar V, Eckert K Gühne O Hulpke F Hyllus P Korbicz J Mompart J Bruß D Lewenstein M Sanpera A, Eisert J, Heydari H, Heydari H, Horodecki M Horodecki P Horodecki R, Hoshang Heydari, Lewenstein M Bruß D Cirac J I Kraus B Kuś M Samsonowicz J Sanpera A Tarrach R, Martin-Delgado M A, Mintert F Kus M Buchleitner A, Osterloh A Siewert J, Pan F Lin D Lu G Draayer J P, Wang A M, Wootters W K   +15 more
core   +1 more source

Multi‐Channel Convolutional Neural Quantum Embedding

Advanced Quantum Technologies, Volume 9, Issue 1, January 2026.
This study presents convolutional neural quantum embedding (CNQE), a framework for optimizing quantum data embeddings for multi‐channel data classification, grounded in quantum state discrimination and Fourier analysis of quantum circuits. CNQE is validated through proof‐of‐principle demonstrations on CIFAR‐10 and Tiny ImageNet, showing improved ...
Yujin Kim, Changjae Im, Taehyun Kim, Tak Hur, Daniel K. Park   +4 more
wiley   +1 more source

Um Novo Algoritmo para a Discriminação de Estados Quânticos

Trends in Computational and Applied Mathematics, 2011
A melhor estratégia para a discriminação de estados quânticos não ortogonais está relacionada com o melhor conjunto de medidas POVM. Apresentamos um novo algoritmo para o problema, estendendo o espaço de Hilbert associado e usando a programação ...
Tatiane da Silva Evangelista, Carlile Campos Lavor   +1 more
doaj   +1 more source

Clean Positive Operator Valued Measures

, 2005
In quantum mechanics the statistics of the outcomes of a measuring apparatus is described by a positive operator valued measure (POVM). A quantum channel transforms POVM's into POVM's, generally irreversibly, thus loosing some of the information ...
Chuang I. L., Davies E. B., Francesco Buscemi, Giacomo Mauro D’Ariano, Helstrom C. W., Holevo A. S., Kraus K., Michael Keyl, Paolo Perinotti, Paulsen V. I., Reinhard F. Werner, Shor P. W.   +11 more
core   +5 more sources

Device‐Independent Quantum Key Distribution: Protocols, Quantum Games and Security

IET Quantum Communication, Volume 7, Issue 1, January/December 2026.
Device‐independent quantum key distribution (DIQKD) removes the need to trust internal device behaviour by certifying security through Bell‐inequality violations, thereby closing practical loopholes in conventional QKD. This paper systematically reviews DIQKD foundations (Bell tests and security definitions), protocol frameworks (CHSH‐based and ...
Syed M. Arslan, Saif Al‐Kuwari, M. T. Rahim, Hashir Kuniyil   +3 more
wiley   +1 more source

Measuring work and heat in ultracold quantum gases

New Journal of Physics, 2015
We propose a feasible experimental scheme to direct measure heat and work in cold atomic setups. The method is based on a recent proposal which shows that work is a positive operator valued measure (POVM). In the present contribution, we demonstrate that
Gabriele De Chiara, Augusto J Roncaglia, Juan Pablo Paz   +2 more
doaj   +1 more source

Entropic Uncertainty Relations via Direct-Sum Majorization Relation for Generalized Measurements

Entropy, 2019
We derive an entropic uncertainty relation for generalized positive-operator-valued measure (POVM) measurements via a direct-sum majorization relation using Schur concavity of entropic quantities in a finite-dimensional Hilbert space.
Kyunghyun Baek, Hyunchul Nha, Wonmin Son
doaj   +1 more source

Probabilistic teleportation of unknown two-particle state via POVM

, 2005
We propose a scheme for probabilistic teleportation of unknown two-particle state with partly entangled four-particle state via POVM. In this scheme the teleportation of unknown two-particle state can be realized with certain probability by performing ...
Bandyopadhyay S, Beige A, Cai Q Y, Dai H Y, Deng F G, Deng F G, Deng F G, Deng F G, Ding He-Wei, Gao T, Gao T, Gao T, Gao T, Gao T, Gao T, Gao T, Helstrom C W, Liu J M, Man Z X, Mor T, Nielsen M A, Rigolin G, Yan F L, Yan F L, Yan F L, Yan Feng-Li, Zeng B   +26 more
core   +1 more source