Results 131 to 140 of about 27,367 (272)
Coordinate‐ and Spacetime‐Independent Quantum Physics
Annalen der Physik, Volume 538, Issue 1, January 2026.This article studies in the framework of quantum field theory in curved spacetime, if there exists a single zero‐rank‐tensor solution of a Klein‐Gordon PDE, being valid at once for the depicted spacetimes. The answer is shown to be affirmative, even for a class of such solutions having the standard applications in particle physics. ABSTRACT The concept
Viacheslav A. Emelyanov, Daniel Robertz
wiley +1 more source
On the Noisy Road to Open Quantum Dynamics: The Place of Stochastic Hamiltonians
Annalen der Physik, Volume 538, Issue 1, January 2026.Stochastic Hamiltonian formulations of open quantum dynamics are revisited, highlighting their roots in stochastic calculus. The connections among stochastic Hamiltonians, stochastic Schrödinger equations, and master‐equation approaches are made explicit.
Pietro De Checchi +3 more
wiley +1 more source
High-speed optical commutator switch for digital optical pulses
, 1993 Nicolas S. B. Jaeger +3 more
openalex +2 more sources
Charging a quantum battery from the Bloch Sphere
Annalen der Physik, Volume 538, Issue 1, January 2026.This study uncovers the origin of the ergotropy stockpiled during the charging of a quantum battery, as well as the genesis of the battery capacity. It is found that both coherences and population inversion can meaningfully contribute, and the balance between these two mechanisms is intimately related to the initial state of the charger as well as the ...
Charles Andrew Downing +1 more
wiley +1 more source
A Taylor-like Expansion of a Commutator with a Function of Self-Adjoint, Pairwise Commuting Operators [PDF]
, 2012 Morten Grud Rasmussen
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Electroanalysis, Volume 38, Issue 1, January 2026.A preconcentration method for Pb2+ coupling solid‐phase extraction (SPE) using SiO2/TiO2/ Sb2O5 with a portable 3D‐printed electrochemical microcell was developed. A multivariate optimization using a fractional factorial design 24‐1 with a central point was carried out.
Diego Prudencio dos Santos +6 more
wiley +1 more source
A Slovenian company Kolektor: Its development and evolution into a multinational enterprise
Journal of Human Resource Management, 2018 Kolektor is a Slovenian company producing commutators, small components of motors. It was established in 1963 and came to cooperate with a West German company in 1968. It endeavored to absorb advanced technology from the partner, concentrate on education
Yoji Koyama
doaj
Boundedness results for commutators with BMO functions via weighted estimates: a comprehensive approach [PDF]
, 2019 Árpád Bényi +4 more
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Engineering Reports, Volume 8, Issue 1, January 2026.This work tackles the unresolved stability problem of heterogeneous quaternion‐valued BAM neural networks plagued by unknown parameters, time‐varying delays, and impulses. By synergizing Lyapunov theory with inequality techniques, we establish rigorous, yet practical, global stability conditions.
Xi Long, Yaqin Li
wiley +1 more source