Results 61 to 70 of about 8,210 (289)
Quantum Heat Current in Terahertz‐Driven Phonon Systems
Advanced Physics Research, EarlyView.We develop a quantum mechanical description of ultrafast thermodynamics on the example of a laser‐excited phonon mode. We show that the resulting quantum heat current exhibits non‐Markovian dynamics, which can be controlled by the pulse length. ABSTRACT The advent of high‐intensity ultrafast laser pulses has opened new opportunities for controlling and
Yulong Qiao, R. Matthias Geilhufe
wiley +1 more source
RESEARCH ON IMPROVING THE WORKING CAPACITY OF THE STUDENTS FROM UNIVERSITY OF AGRONOMIC SCIENCES AND VETERINARY MEDICINE BUCHAREST ACCORDING TO THE SPECIALIZED EXERCISES IN THEIR PHYSICAL TRAINING [PDF]
Scientific Papers Series : Management, Economic Engineering in Agriculture and Rural Development, 2016 Between the physical education and sports education there are both elements of similarity and distinction. The similarity lies in the fact that the main working tool is both physical exercise and also common results that we find in the two activities ...
Eugenia SOVAREL
doaj
Polynomial Algorithms for Simultaneous Unitary Similarity and Equivalence
CoRR14 pages, 2 ...
Harikrishna VJ +2 more
openaire +2 more sources
Unitary similarity classes within the cospectral-congruence class of a matrix
, 2005 Matrix B∈Mn(C) is C-S equivalent (resp. C-E equivalent) to A∈Mn(C) if B is both congruent and similar to (resp. cospectral with) A. We are concerned with the number (typically one or infinitely many) of unitary similarity classes in the C-S (resp.
Johnson, Charles R., Furtado, Susana
core +1 more source
Advanced Physics Research, EarlyView.ABSTRACT We introduce a family of bosonic quantum error‐correcting codes built as a rotation‐symmetric superposition of squeezed vacuum states, which promise protection against both loss and dephasing noise channels. The robustness of these “squeezed‐vacuum codes” arises from being arranged at evenly spaced angles in phase‐space, and simultaneously in ...
Nir Gutman +4 more
wiley +1 more source
International Journal of Mathematics and Mathematical Sciences, 2002 We investigate an N-state spin model called quantum relativistic Toda chain and based on the unitary finite-dimensional representations of the Weyl algebra with q being Nth primitive root of unity. Parameters of the finite-dimensional representation of
Stanislav Pakuliak, Sergei Sergeev
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Wewenang Pemerintah dalam Pembubaran Organisasi Masyarakat
Lentera Hukum, 2017 Civil Society Organization (CSO) is an organization founded and formed by the community voluntarily based on the similarity of aspirations, wills, needs, interests and objectives to participate in development in order to achieve the objectives of the ...
Emanuel Raja Damaitu, Igam Arya Wada
doaj +1 more source
Jordan–Schur Algorithms for Computing the Matrix Exponential
International Journal of Mathematics and Mathematical Sciences, 2023 In this paper, two new versions of the Schur algorithm for computing the matrix exponential of an n×n complex matrix A are presented. Instead of the Schur form, these algorithms use the Jordan–Schur form of A.
Petko H. Petkov
doaj +1 more source
Quaternionic matrices: Unitary similarity, simultaneous triangularization and some trace identities
, 2007 We construct six unitary trace invariants for 2×2 quaternionic matrices which separate the unitary similarity classes of such matrices, and show that this set is minimal.
Smith, Benjamin H. +3 more
core +1 more source
Advanced Physics Research, EarlyView.A physics‐grounded framework based on decoherence timescales (τ_dec vs τ_func), Markovian validity, and falsifiability criteria is applied across molecular systems to distinguish where quantum effects are necessary, marginal, or irrelevant. The analysis integrates quantum chemistry, biological quantum mechanisms, and quantum computing under a unified ...
Sarfaraz K. Niazi
wiley +1 more source