Results 41 to 50 of about 231,003 (300)
Veterinary Sciences, 2020 Paratuberculosis (PTB) is an enteric granulomatous disease caused by Mycobacterium avium subsp. paratuberculosis (MAP) that mainly affects ruminants. Current vaccines have shown to be cost−effective control reagents, although they are restricted ...
Rakel Arrazuria +8 more
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Bloch equations and completely positive maps [PDF]
Journal of Modern Optics, 2004 The phenomenological dissipation of the Bloch equations is reexamined in the context of completely positive maps. Such maps occur if the dissipation arises from a reduction of a unitary evolution of a system coupled to a reservoir. In such a case the reduced dynamics for the system alone will always yield completely positive maps of the density ...
Daffer, Sonja +2 more
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Distinguishing between statistical and systematic errors in quantum process tomography
New Journal of Physics, 2019 It is generally assumed that every process in quantum physics can be described mathematically by a completely positive map. However, experimentally reconstructed processes are not necessarily completely positive due to statistical or systematic errors ...
Sabine Wölk +3 more
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Quantized Markov Chain Couplings that Prepare Qsamples [PDF]
QuantumWe present a novel approach to quantizing Markov chains. The approach is based on the Markov chain coupling method, which is frequently used to prove fast mixing. Given a particular coupling, e.g., a grand coupling, we construct a completely positive and
Kristan Temme, Pawel Wocjan
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A novel hyperchaotic system with fast and slow attractors
AIP Advances, 2022 A novel hyperchaotic system with only one equilibrium point is proposed by introducing an additional state feedback. The dynamic behaviors of this system are investigated by means of the Lyapunov exponent, Poincaré map, and bifurcation diagrams, i.e ...
Shaofu Wang
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Application of Remote Sensing and GIS Techniques for the Analysis of Lake Water Fluctuations: A Case Study of Ugii Lake, Mongolia [PDF]
Nature Environment and Pollution Technology, 2021 Ugii Lake is a freshwater lake located in the steppe region of Mongolia and is an important breeding and staging area for a wide variety of waterfowl. Remote sensing and geographic information system techniques were used to estimate fluctuations in the ...
Amgalan Magsar, Toru Matsumoto, Altanbold Enkhbold and Nandintsetseg Nyam-Osor
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Weak Log-majorization of Unital Trace-preserving Completely Positive Maps [PDF]
, 2019 Let Φ : Mn → Mn be a unital trace preserving completely positive map and A ∈ Mn be a positive definite matrix. Weak log-majorization and weak majorization between Φ(A) and A are studied.
Lau, Pan Shun, Tam, Tin-Yau
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Comparison of completely positive maps on Hilbert C∗-modules [PDF]
, 2012 We introduce a preorder relation in the collection of all operator-valued completely positive maps on a full Hilbert C∗-module and characterize this relation in terms of the Stinespring construction associated to each completely positive ...
Joiţa, Maria, Maria Joiţa
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Spectral and ergodic properties of completely positive maps and decoherence [PDF]
, 2022 In an attempt to propose more general conditions for decoherence to occur, we study spectral and ergodic properties of unital, completely positive maps on not necessarily unital C⁎-algebras, with a particular focus on gapped maps for which the transient ...
Fidaleo Francesco +8 more
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Causality and the complete positivity of classical polarization maps [PDF]
Optics Letters, 2011 Mueller and Jones matrices have been thoroughly studied as mathematical tools to describe the manipulation of the polarization state of classical light. In particular, the most general physical transformation on the polarization state has been represented as an ensemble of Jones matrices, as ∑iV(i)ΦV(i)(†).
Omar, Gamel, Daniel F V, James
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