搜索结果: 61-75 共查到“知识库 数学物理”相关记录1440条 . 查询时间(0.706 秒)
A Top-Down Account of Linear Canonical Transforms
linear transforms canonical transforms Lie group Sp(2 R) Mathematical Physics
font style='font-size:12px;'>
2012/6/21
We contend that what are called Linear Canonical Transforms (LCTs) should be seen as a part of the theory of unitary irreducible representations of the '2+1' Lorentz group. The integral kernel represe...
Notes on the Schwinger model: regularization and gauge invariance
the Schwinger model regularization and gauge invariance Mathematical Physics
font style='font-size:12px;'>
2012/6/21
The point-splitting computation of the gauge invariant Hamiltonian for the Schwinger model on the circle in a positive energy representation is presented.
Towards a combined fractional mechanics and quantization
fractional canonical formalism Hamiltonian approach variational principles of physics nonconservative systems
font style='font-size:12px;'>
2012/6/21
A fractional Hamiltonian formalism is introduced for the recent combined fractional calculus of variations. The Hamilton-Jacobi partial differential equation is generalized to be applicable for system...
Eigenvalue distributions from a star product approach
Eigenvalue distributions star product approach Mathematical Physics
font style='font-size:12px;'>
2012/6/21
We use the well-known isomorphism between operator algebras and function spaces equipped with a star product to study the asymptotic properties of certain matrix sequences in which the matrix dimensio...
Generalized T-Q relations and the open spin-s XXZ chain with nondiagonal boundary terms
Generalized T-Q relations the open spin-s XXZ chain nondiagonal boundary terms Mathematical Physics
font style='font-size:12px;'>
2012/6/21
We consider the open spin-s XXZ quantum spin chain with nondiagonal boundary terms. By exploiting certain functional relations at roots of unity, we derive a generalized form of T-Q relation involving...
A Family of Exact, Analytic Time Dependent Wave Packet Solutions to a Nonlinear Schroedinger Equation
A Family of Exact Analytic Time Dependent Packet Solutions Nonlinear Schroedinger Equation Mathematical Physics
font style='font-size:12px;'>
2012/6/19
We obtain time dependent $q$-Gaussian wave-packet solutions to a non linear Schr\"odinger equation recently advanced by Nobre, Rego-Montero and Tsallis (NRT) [Phys. Rev. Lett. 106 (2011) 10601]. The N...
Towards applications of graded Paraparticle algebras
Relative Paraparticle algebras general linear superalgebra multiple-level system
font style='font-size:12px;'>
2012/6/19
An outline is sketched, of applications of the ideas and the mathematical methods presented at the 19th symposium of the Hellenic Nuclear Physics Society (HNPS) in Thessaloniki, May 2010.
Non-diagonal open spin-1/2 XXZ quantum chains by separation of variables: Complete spectrum and matrix elements of some quasi-local operators
Non-diagonal open spin-1/2 XXZ quantum chains by separation of variables Complete spectrum matrix elements Mathematical Physics
font style='font-size:12px;'>
2012/6/19
The integrable quantum models associated to the transfer matrices of spin 1/2 highest weight representations for the 6-vertex reflection algebra are studied in the framework of Sklyanin's quantum sepa...
Convergent Quantum Normal Forms, ${\mathcal P}{\mathcal T}$-symmetry and reality of the spectrum
Convergent Quantum Normal Forms reality of the spectrum Mathematical Physics
font style='font-size:12px;'>
2012/6/19
A class of non-selfadjoint, $\PT$-symmetric operators is identified similar to a self-adjoint one, thus entailing the reality of the spectrum. The similarity transformation is explicitly constructed t...
Gravity, strings, modular and quasimodular forms
Gravity strings modular and quasimodular forms Mathematical Physics
font style='font-size:12px;'>
2012/6/19
Modular and quasimodular forms have played an important role in gravity and string theory. Eisenstein series have appeared systematically in the determination of spectrums and partition functions, in ...
On generalized Cramér-Rao inequalities, generalized Fisher informations and characterizations of generalized q-Gaussian distributions
generalized Cramer-Rao inequalities generalized Fisher informations characterizations of generalized q-Gaussian distributions Mathematical Physics
font style='font-size:12px;'>
2012/6/19
This paper deals with Cram\'er-Rao inequalities in the context of nonextensive statistics and in estimation theory. It gives characterizations of generalized q-Gaussian distributions, and introduces g...
From simplicial Chern-Simons theory to the shadow invariant II
simplicial Chern-Simons theory the shadow invariant II Mathematical Physics
font style='font-size:12px;'>
2012/6/18
This is the second of a series of papers in which we develop a "discretization approach" for the rigorous realization of the non-Abelian Chern-Simons path integral for manifolds M of the form M=Sigma ...
Families of superintegrable Hamiltonians constructed from exceptional polynomials
Families of superintegrable Hamiltonians exceptional polynomials Mathematical Physics
font style='font-size:12px;'>
2012/6/19
We introduce a family of exactly-solvable two-dimensional Hamiltonians whose wave functions are given in terms of Laguerre and exceptional Jacobi polynomials. The Hamiltonians contain purely quantum t...
Further implications of the Bessis-Moussa-Villani conjecture
Further implications the Bessis-Moussa-Villani conjecture Mathematical Physics
font style='font-size:12px;'>
2012/6/19
We find further implications of the BMV conjecture, which states that for hermitian matrices A and B, the function Tr exp(A - t B) is the Laplace transform of a positive measure.
Augmented down-up algebras and uniform posets
Uniform poset dual polar space dual polar graph down-up algebra
font style='font-size:12px;'>
2012/6/19
Motivated by the structure of the uniform posets we introduce the notion of an augmented down-up (or ADU) algebra. We discuss how ADU algebras are related to the down-up algebras defined by Benkart an...