Results 31 to 40 of about 1,067,624 (281)

Path Integral on Star Graph

, 2012
In this paper we study path integral for a single spinless particle on a star graph with N edges, whose vertex is known to be described by U(N) family of boundary conditions.
Albeverio, Asorey, Asorey, Asorey, Bachas, Bajnok, Bastianelli, Bastianelli, Bastianelli, Bastianelli, Bauch, Bellazzini, Bellazzini, Blinder, Carreau, Cheon, Cheon, Clark, Dowker, Farhi, Fülöp, Fülöp, Gamboa, Gaveau, Goovaerts, Grosche, Horvathy, Kuchment, Laidlaw, Lal, Lawande, Leinaas, Nayak, Ohya, Ohya, Oshikawa, Oshikawa, Satoshi Ohya, Schubert, Schulman, Schulman, Schulman, Tanimura, Viñas, Wong   +44 more
core   +1 more source

A Note On The First Class Approaches Of Massive P-Forms

Annals of West University of Timisoara: Physics, 2012
The problem of quantization of the massive p-forms is considered in the framework of the Batalin-Fradkin (BF) approach based on path integral. The quantization procedure relies on the path integral of a first-class system equivalent with the original ...
Sararu S. C., Udristioiu M. T.
doaj   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Dependent coordinates in path integral measure factorization

, 2003
The transformation of the path integral measure under the reduction procedure in the dynamical systems with a symmetry is considered. The investigation is carried out in the case of the Wiener--type path integrals that are used for description of the ...
Abraham R, Belopolskaya Ya I, Belopolskaya Ya I, Betounes D E, Chen Bang-yen, Creutz M, Dalecky L Yu, Dalecky Yu L, Dalecky Yu L, Ellicott P, Faddeev L D, Faddeev L D, Falck N K, Gavedzki K, Ikeda N, Jaskolski Z, Kunstatter G, Lewis J T, Lipster R S, Mitter P K, Plyushchay M S, Pugachev V S, Razumov A V, Razumov A V, Razumov A V Taranov A Yu, Reinhardt H, S N Storchak, Solodovnikova E P, Solodovnikova E P, Solodovnikova E P, Storchak S N, Storchak S N, Storchak S N, Stroock D W, Tanimura S   +34 more
core   +2 more sources

Renormalized Path Integral in Quantum Mechanics [PDF]

, 1996
We obtain direct, finite, descriptions of a renormalized quantum mechanical system with no reference to ultraviolet cutoffs and running coupling constants, in both the Hamiltonian and path integral pictures.
Henderson, R. J., Rajeev, S. G.
core   +3 more sources

Nonlocal transformation of the internal quantum particle structure

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2016
The analysis of the integral wave equation, having path integral kernel, has resulted, that collapse phenomenon is based on the nonlocal transformation of the internal structure of a quantum particle, considering in the form of the matter fields ...
Alexey Yu Samarin
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Heat current in non-Markovian open systems

New Journal of Physics, 2023
We generalize time-evolving matrix product operators method to nonequilibrium quantum transport problems. The nonequilibrium current is obtained via numerical differentiation of the generating functional which is represented as a tensor network.
Ruofan Chen
doaj   +1 more source

Diversity and complexity in neural organoids

FEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source