Results 21 to 30 of about 2,522,381 (292)

Rashba coupling in quantum dots: exact solution [PDF]

, 2003
We present an analytic solution to the problem of the Rashba spin-orbit coupling in semiconductor quantum dots. We calculate the exact energy spectrum, wave-functions, and spin--flip relaxation times.
A. O. Gogolin, A. V. Khaetskii, E. I. Rashba, E. I. Rashba, E. Tsitsishvili, F. Bowman, G. E. Pikus, G. N. Watson, G. S. Lozano, L. D. Landau, L. Jacak, S. Bandyopadhyay, V. F. Gantmakher, Yu. A. Bychkov, Yu. A. Bychkov   +14 more
core   +2 more sources

Exact solutions in Chiral cosmology [PDF]

General Relativity and Gravitation, 2019
10 pages, no figures, title changed, version accepted for publication by Gen.
Andronikos Paliathanasis, Genly Leon, Supriya Pan   +2 more
openaire   +3 more sources

Exact Solution and Exotic Fluid in Cosmology

Entropy, 2012
We investigate cosmological consequences of nonlinear sigma model coupled with a cosmological fluid which satisfies the continuity equation. The target space action is of the de Sitter type and is composed of four scalar fields.
Phillial Oh, Taeyoon Moon, Seyen Kouwn
doaj   +1 more source

Exact solution of the Faddeev-Volkov model [PDF]

, 2007
The Faddeev-Volkov model is an Ising-type lattice model with positive Boltzmann weights where the spin variables take continuous values on the real line.
Bazhanov, Vladimir V., Mangazeev, Vladimir V., Sergeev, Sergey M.   +2 more
core   +1 more source

Exact solution of the Φ23 finite matrix model

Nuclear Physics B, 2022
We find the exact solutions of the Φ23 finite matrix model (Grosse-Wulkenhaar model). In the Φ23 finite matrix model, multipoint correlation functions are expressed as G|a11…aN11|…|a1B…aNBB|.
Naoyuki Kanomata, Akifumi Sako
doaj   +1 more source

Exact solution of the two-axis countertwisting Hamiltonian [PDF]

, 2016
It is shown that the two-axis countertwisting Hamiltonian is exactly solvable when the quantum number of the total angular momentum of the system is an integer after the Jordan-Schwinger (differential) boson realization of the SU(2) algebra.
Draayer, Jerry P., Pan, Feng, Zhang, Yao-Zhong   +2 more
core   +2 more sources

Insight on the Nonhomogeneous Pantograph Equation with an Arbitrary Polynomial of Degree n: Explicit Solution

Mathematics
This paper solves a nonhomogeneous version of the pantograph equation. The nonhomogeneous term is taken as a polynomial of degree n with arbitrary coefficients.
Mona D. Aljoufi
doaj   +1 more source

Another exact inflationary solution

, 2000
A new closed-form inflationary solution is given for a hyperbolic interaction potential. The method used to arrive at this solution is outlined as it appears possible to generate additional sets of equations which satisfy the model.
A. Abdel-Rahman, A. Dolgov, A. G. Muslimov, A. Linde, Adam T. Kruger, B. Ratra, C. W. Misner, D. Pavon, D. S. Salopek, E. Kolb, F. E. Schunck, F. Lucchin, G. F. R. Ellis, J. D. Barrow, J. D. Barrow, J. E. Lidsey, J. Islam, J. Lima, J. Matyjasek, J. W. Norbury, J. W. Norbury, John W. Norbury, K. Coble, K. Freese, L. Ford, L. Parker, M. Berman, M. Gasperini, M. Ozer, M. Reuter, P. J. E. Peebles, P. Peebles, S. Barr, S. P. Starkovich, T. Olson, V. M. Zhuravlev, W. Chen, Y. Fujii   +37 more
core   +2 more sources

Exact charged traversable wormhole solution

Physics Letters B
An exact analytical solution for the charged traversable wormhole solution has been found by solving minimally coupled Einstein-Maxwell-Scalar (EMS) field equations.
Bobur Turimov, Ahmadjon Abdujabbarov, Bobomurat Ahmedov, Zdeněk Stuchlík   +3 more
doaj   +1 more source

THE MATHEMATICAL MODEL OF DOME COVERING INDUSTRIAL FACILITY

Architecture and Engineering, 2017
A statically determinate flat truss models the industrial facility's arch. To derive dependence of structural deflection on the number of panels in a span, the Maxwell–Mohr equation, computer mathematics system Maple and the induction method are applied.
Mikhail Kirsanov, Sergei Astahov
doaj   +1 more source