Results 1 to 10 of about 2,002 (67)

On the Coherent State Path Integral for Linear Systems [PDF]

, 2005
We present a computation of the coherent state path integral for a generic linear system using ``functional methods'' (as opposed to discrete time approaches).
A. Albeverio, C. G. Torre, C. Itzykson, D. Shale, F. Berezin, J. Klauder, L. Faddeev, L. Schulman, O. Bratteli, R. Wald   +9 more
core   +4 more sources

Modular Theory, Non-Commutative Geometry and Quantum Gravity [PDF]

, 2010
This paper contains the first written exposition of some ideas (announced in a previous survey) on an approach to quantum gravity based on Tomita-Takesaki modular theory and A.
Bertozzini, Paolo, Conti, Roberto, Lewkeeratiyutkul, Wicharn   +2 more
core   +4 more sources

Pimsner algebras and Gysin sequences from principal circle actions [PDF]

, 2015
A self Morita equivalence over an algebra B, given by a B-bimodule E, is thought of as a line bundle over B. The corresponding Pimsner algebra O_E is then the total space algebra of a noncommutative principal circle bundle over B.
Arici, Francesca, Kaad, Jens, Landi, Giovanni   +2 more
core   +2 more sources

A Fredholm Determinant for Semi-classical Quantization [PDF]

, 1993
We investigate a new type of approximation to quantum determinants, the ``\qFd", and test numerically the conjecture that for Axiom A hyperbolic flows such determinants have a larger domain of analyticity and better convergence than the \qS s derived ...
Cvitanović, Predrag, Rosenqvist, Per E., Rugh, Hans Henrik, Vattay, Gábor   +3 more
core   +2 more sources

Gravitational and axial anomalies for generalized Euclidean Taub-NUT metrics [PDF]

, 2004
The gravitational anomalies are investigated for generalized Euclidean Taub-NUT metrics which admit hidden symmetries analogous to the Runge-Lenz vector of the Kepler-type problem. In order to evaluate the axial anomalies, the index of the Dirac operator
Atiyah M F, Atiyah M F, Booß-Bavnbek B, Cariglia M, Cotăescu I I, Cotăescu I I, Cotăescu I I, Ion I Cotaescu, Iwai T, Lauter R, Mazzeo R R, Melrose R B, Mihai Visinescu, Miyake Y, Peeters K, Röomer H, Savin A Y, Savin A Y, Savin A Y, Sergiu Moroianu, Vaillant B, Visinescu M   +21 more
core   +1 more source

D-Brane Bound States Redux [PDF]

, 1997
We study the existence of D-brane bound states at threshold in Type II string theories. In a number of situations, we can reduce the question of existence to quadrature, and the study of a particular limit of the propagator for the system of D-branes ...
Sethi, Savdeep, Stern, Mark
core   +2 more sources

Grassmannian and string theory [PDF]

, 1996
Infinite-dimensional Grassmannian manifold contains moduli spaces of Riemann surfaces of all genera. This well known fact leads to a conjecture that non-perturbative string theory can be formulated in terms of Grassmannian.
Schwarz, Albert
core   +2 more sources

Chern character in twisted K-theory: equivariant and holomorphic cases [PDF]

, 2002
It has been argued by Witten and others that in the presence of a nontrivial B-field, D-brane charges in type IIB string theories are measured by twisted K-theory.
Mathai, Varghese, Stevenson, Danny
core   +7 more sources

Fredholm conditions on non-compact manifolds: theory and examples

, 2017
We give explicit Fredholm conditions for classes of pseudodifferential operators on suitable singular and non-compact spaces. In particular, we include a "user's guide" to Fredholm conditions on particular classes of manifolds including asymptotically ...
Carvalho, Catarina, Nistor, Victor, Qiao, Yu   +2 more
core   +1 more source

Duality, Biorthogonal Polynomials and Multi-Matrix Models [PDF]

, 2001
The statistical distribution of eigenvalues of pairs of coupled random matrices can be expressed in terms of integral kernels having a generalized Christoffel--Darboux form constructed from sequences of biorthogonal polynomials.
Bertola, M., Eynard, B., Harnad, J.
core   +4 more sources