Results 41 to 50 of about 48,145 (341)

Integrable field theories from Poisson algebras [PDF]

open access: yes, 1991
New integrable 1 + 1 dimensional classical field theories are found that include infinite dimensional analogues of N-particle Toda-and Calogero-Moser systems, as well as non-relativistic theories with an interaction that is polynomial in the first ...
Bordemann, M., Hoppe, J., Theisen, S.
core   +1 more source

Entanglement and confinement in coupled quantum systems

open access: yesJournal of High Energy Physics, 2021
We study some general properties of coupled quantum systems. We consider simple interactions between two copies of identical Hamiltonians such as the SYK model, Pauli spin chains with random magnetic field and harmonic oscillators.
Fabien Alet   +3 more
doaj   +1 more source

Classically Integrable Cosmological Models with a Scalar Field [PDF]

open access: yes, 1995
New classes of classically integrable models in the cosmological theories with a scalar field are obtained by using freedoms of defining time and fields.
Suzuki, H., Takasugi, E., Takayama, Y.
core   +3 more sources

Metric approach to a T T ¯ $$ \mathrm{T}\overline{\mathrm{T}} $$ -like deformation in arbitrary dimensions

open access: yesJournal of High Energy Physics, 2022
We consider a one-parameter family of composite fields — bi-linear in the components of the stress-energy tensor — which generalise the T T ¯ $$ \mathrm{T}\overline{\mathrm{T}} $$ operator to arbitrary space-time dimension d ≥ 2. We show that they induce
Riccardo Conti   +2 more
doaj   +1 more source

Integrable N=2 Supersymmetric Field Theories

open access: yes, 1992
Some additional references are included on the last 3 pages.Comment: 14 pages, OUTP-92 ...
Ahn   +45 more
core   +2 more sources

Supersymmetry and T T ¯ $$ T\overline{T} $$ deformations

open access: yesJournal of High Energy Physics, 2019
We propose a manifestly supersymmetric generalization of the solvable T T ¯ $$ T\overline{T} $$ deformation of two-dimensional field theories. For theories with (1, 1) and (0, 1) supersymmetry, the deformation is defined by adding a term to the ...
Chih-Kai Chang   +2 more
doaj   +1 more source

On a systematic approach to defects in classical integrable field theories [PDF]

open access: yes, 2008
We present an inverse scattering approach to defects in classical integrable field theories. Integrability is proved systematically by constructing the generating function of the infinite set of modified integrals of motion.
Bibikov P. N.   +7 more
core   +3 more sources

Integrable open spin chains from flavored ABJM theory

open access: yesJournal of High Energy Physics, 2017
We compute the two-loop anomalous dimension matrix in the scalar sector of planar N = 3 $$ \mathcal{N}=3 $$ flavored ABJM theory. Using coordinate Bethe ansatz, we obtain the reflection matrices and confirm that the boundary Yang-Baxter equations are ...
Nan Bai   +5 more
doaj   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

T T ¯ $$ T\overline{T} $$ deformations and the width of fundamental particles

open access: yesJournal of High Energy Physics, 2022
We provide a simple geometric meaning for deformations of so-called T T ¯ $$ T\overline{T} $$ type in relativistic and non-relativistic systems. Deformations by the cross products of energy and momentum currents in integrable quantum field theories are ...
John Cardy, Benjamin Doyon
doaj   +1 more source

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