Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Michalis Skotiniotis"'
Publikováno v:
Physical Review Research, Vol 6, Iss 3, p 033329 (2024)
We consider the problem of correctly identifying a malfunctioning quantum device that forms part of a network of N such devices, which can be considered as the quantum analog of classical anomaly detection. In the case where the devices in question a
Externí odkaz:
https://doaj.org/article/4fd486e910a740d19a91eebaf3f62345
Publikováno v:
Quantum, Vol 6, p 722 (2022)
We consider the distribution of high-dimensional entangled states to multiple parties via noisy channels and the subsequent probabilistic conversion of these states to desired target states using stochastic local operations and classical communicatio
Externí odkaz:
https://doaj.org/article/8dab19c832fe4668b08ab3057c899c09
Publikováno v:
Quantum, Vol 5, p 608 (2021)
We study the problem of transmitting classical information using quantum Gaussian states on a family of phase-noise channels with a finite decoherence time, such that the phase-reference is lost after $m$ consecutive uses of the transmission line. Th
Externí odkaz:
https://doaj.org/article/04fbc42b0383405aa4ca79c69ba90fa3
Autor:
María García Díaz, Kun Fang, Xin Wang, Matteo Rosati, Michalis Skotiniotis, John Calsamiglia, Andreas Winter
Publikováno v:
Quantum, Vol 2, p 100 (2018)
Coherent superposition is a key feature of quantum mechanics that underlies the advantage of quantum technologies over their classical counterparts. Recently, coherence has been recast as a resource theory in an attempt to identify and quantify it in
Externí odkaz:
https://doaj.org/article/6bae3a1086514849af0d43abda6aff6a
Publikováno v:
Quantum, Vol 1, p 34 (2017)
We consider fundamental limits on the detectable size of macroscopic quantum superpositions. We argue that a full quantum mechanical treatment of system plus measurement device is required, and that a (classical) reference frame for phase or directio
Externí odkaz:
https://doaj.org/article/3af59e02cfa64bbf9ed2095b3354cdbe
Publikováno v:
Quantum, Vol 1, p 27 (2017)
We establish general limits on how precise a parameter, e.g. frequency or the strength of a magnetic field, can be estimated with the aid of full and fast quantum control. We consider uncorrelated noisy evolutions of N qubits and show that fast contr
Externí odkaz:
https://doaj.org/article/556a329a41d94bafa24dadc97e631972
Autor:
Nicolai Friis, Davide Orsucci, Michalis Skotiniotis, Pavel Sekatski, Vedran Dunjko, Hans J Briegel, Wolfgang Dür
Publikováno v:
New Journal of Physics, Vol 19, Iss 6, p 063044 (2017)
Quantum metrology offers a quadratic advantage over classical approaches to parameter estimation problems by utilising entanglement and nonclassicality. However, the hurdle of actually implementing the necessary quantum probe states and measurements,
Externí odkaz:
https://doaj.org/article/ff4c6fed9f9347da91db739e76140d41
Publikováno v:
New Journal of Physics, Vol 18, Iss 7, p 073034 (2016)
We consider the usage of dynamical decoupling in quantum metrology, where the joint evolution of system plus environment is described by a Hamiltonian. We show that by ultra-fast unitary control operations acting locally only on system qubits, noise
Externí odkaz:
https://doaj.org/article/66bd443b92e5496b9e9ef7813d15f44b
Publikováno v:
Europhysics Letters. 140:28001
Operating quantum sensors and quantum computers would make data in the form of quantum states available for purely quantum processing, opening new avenues for studying physical processes and certifying quantum technologies. In this Perspective, we re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::218e4bf2db01b2fd9acbc79c8c3a5e2f
https://doi.org/10.1209/0295-5075/ac9c29
https://doi.org/10.1209/0295-5075/ac9c29
Publikováno v:
Physical Review A
De Almeida, J O, Kołodyński, J, Hirche, C, Lewenstein, M & Skotiniotis, M 2021, ' Discrimination and estimation of incoherent sources under misalignment ', Physical Review A, vol. 103, no. 2, 022406 . https://doi.org/10.1103/PhysRevA.103.022406
De Almeida, J O, Kołodyński, J, Hirche, C, Lewenstein, M & Skotiniotis, M 2021, ' Discrimination and estimation of incoherent sources under misalignment ', Physical Review A, vol. 103, no. 2, 022406 . https://doi.org/10.1103/PhysRevA.103.022406
Spatially resolving two incoherent point sources whose separation is well below the diffraction limit dictated by classical optics has recently been shown possible using techniques that decompose the incoming radiation into orthogonal transverse mode
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2afad385090747f9c6a8ae0b8ed32629