Results 1 to 10 of about 2,670,928 (182)

New boundary conditions for AdS2

open access: yesJournal of High Energy Physics, 2020
We describe new boundary conditions for AdS2 in Jackiw-Teitelboim gravity. The asymptotic symmetry group is enhanced to Diff(S 1) ⋉ C ∞(S 1) whose breaking to SL(2, ℝ) × U(1) controls the near-AdS2 dynamics. The action reduces to a boundary term which is
Victor Godet, Charles Marteau
doaj   +1 more source

Vacuum fluctuations and generalized boundary conditions [PDF]

open access: yes, 2013
We present a study of the static and dynamical Casimir effects for a quantum field theory satisfying generalized Robin boundary condition, of a kind that arises naturally within the context of quantum circuits. Since those conditions may also be relevant
Fosco, C. D.   +2 more
core   +2 more sources

The Third Mixed Boundary-Value Problem for Strongly Elliptic Differential-Difference Equations in a Bounded Domain

open access: yesСовременная математика: Фундаментальные направления
We consider strongly elliptic differential-difference equations with mixed boundary conditions in a bounded domain. There are homogeneous Dirichlet conditions on a part of the boundary, and boundary conditions of the third kind on the other part of the ...
V. V. Akhlynina
doaj   +1 more source

On a fractional q-differential inclusion on a time scale via endpoints and numerical calculations

open access: yesAdvances in Difference Equations, 2020
By using an endpoint result for set-valued maps, we study the existence of solutions for a fractional q-differential inclusion with sum and integral boundary value conditions on the time scale T t 0 = { t 0 q , t 0 q 2 , … } ∪ { 0 } $\mathbb{T}_{t_{0}}= \
Mohammad Esmael Samei, Shahram Rezapour
doaj   +1 more source

Topcolor breaking through boundary conditions

open access: yes, 2004
The nontrivial boundary conditions (BC's) for the Topcolor breaking are investigated in the context of the TeV-scale extra dimension scenario. In the gauge symmetry breaking mechanism via the BC's we do not need to incorporate a dynamical mechanism for ...
Hashimoto, Michio, Hong, Deog Ki
core   +1 more source

Probability of Boundary Conditions in Quantum Cosmology [PDF]

open access: yes, 2017
One of the main interest in quantum cosmology is to determine boundary conditions for the wave function of the universe which can predict observational data of our universe.
71351   +3 more
core   +2 more sources

Boundary Conditions as Dynamical Fields

open access: yes, 2015
The possibility of treating boundary conditions in terms of a bilocal dynamical field is formalized in terms of a boundary action. This allows for a simple path-integral perturbation theory approach to physical effects such as radiation from a time ...
Karabali, Dimitra, Nair, V. P.
core   +2 more sources

Control of lateral boundary conditions in four-dimensional variational data assimilation for a limited area model [PDF]

open access: yesTellus: Series A, Dynamic Meteorology and Oceanography, 2012
The limited area model forecasting problem is a lateral boundary condition (LBC) problem in addition to the initial condition problem. The data assimilation has traditionally been considered as a process for estimation of the initial condition only ...
Nils Gustafsson
doaj   +1 more source

Consistent boundary conditions for supergravity

open access: yes, 2005
We derive the complete orbit of boundary conditions for supergravity models which is closed under the action of all local symmetries of these models, and which eliminates spurious field equations on the boundary. We show that the Gibbons-Hawking boundary
van Nieuwenhuizen, P.   +1 more
core   +3 more sources

New boundary conditions for integrable lattices [PDF]

open access: yes, 1995
New boundary conditions for integrable nonlinear lattices of the XXX type, such as the Heisenberg chain and the Toda lattice are presented. These integrable extensions are formulated in terms of a generic XXX Heisenberg magnet interacting with two ...
Baxter R J   +19 more
core   +4 more sources

Home - About - Disclaimer - Privacy