Results 41 to 50 of about 48,063 (294)

Purely transmitting integrable defects [PDF]

open access: yes, 2006
Some aspects of integrable field theories possessing purely transmitting defects are described. The main example is the sine-Gordon model and several striking features of a classical field theory containing one or more defects are pointed out.
A.C. Scott   +10 more
core   +3 more sources

Integrable Field Theory from Conformal Field Theory

open access: yesAdvanced Studies in Pure Mathematics, 1989
Equations of motion for two-dimensional quantum field theory obtained as some relevant perturbation around CFT are analyzed. It is shown that for particular degenerate fields taken as the perturbations, the resulting field theories posseses non-trivial local integrals of motion.
openaire   +2 more sources

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

Integrability of Boundary Liouville Conformal Field Theory

open access: yesCommunications in Mathematical Physics, 2022
70 pages, 2 ...
Guillaume Remy, Tunan Zhu
openaire   +2 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

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

Defining Roles in Pediatric Palliative Care: Perspectives From Oncology and Palliative Care Teams

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Early integration of pediatric palliative care (PPC) is associated with improved symptom management, quality of life, and healthcare utilization for children with cancer. Despite this, variation persists in how PPC is understood, operationalized, and integrated within pediatric oncology programs. In particular, ambiguity surrounding
Leeat Granek   +13 more
wiley   +1 more source

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

Supersymmetric integrable scattering theories with unstable particles [PDF]

open access: yes, 2004
We propose scattering matrices for N=1 supersymmetric integrable quantum field theories in 1+1 dimensions which involve unstable particles in their spectra.
A. LeClair   +14 more
core   +5 more sources

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

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