Quantum Field Theory - Institut für Theoretische Physik
... physics in the guise of critical behavior of statistical systems confined to surfaces. ...
... physics in the guise of critical behavior of statistical systems confined to surfaces. ...
list of abstracts - Faculdade de Ciências
... group, the enveloping algebra approach and the Seiberg-Witten map. The effective action and the equations of motion are expanded up to second order in the deformation parameter. The equations of motion show that the noncommutativity plays a role of a source for the curvature and/or torsion. The NC c ...
... group, the enveloping algebra approach and the Seiberg-Witten map. The effective action and the equations of motion are expanded up to second order in the deformation parameter. The equations of motion show that the noncommutativity plays a role of a source for the curvature and/or torsion. The NC c ...
Matrix model formulations of superstring theory
... analogous to lattice gauge theory for QCD IKKT model : nonperturbative formulation of superstrings the Euclidean version has interesting dynamics but not quite realistic… (motivates Lorentzian version) ...
... analogous to lattice gauge theory for QCD IKKT model : nonperturbative formulation of superstrings the Euclidean version has interesting dynamics but not quite realistic… (motivates Lorentzian version) ...
Linear-Response Theory, Kubo Formula, Kramers
... This is an informal paper, not intended for publication. The topics, linear-response theory, Kubo formula, Kramers-Kronig relations and fluctuation-dissipation theorem, are closely connected and belong to the most important and at the same time most complicated issues of quantum statistics. On the o ...
... This is an informal paper, not intended for publication. The topics, linear-response theory, Kubo formula, Kramers-Kronig relations and fluctuation-dissipation theorem, are closely connected and belong to the most important and at the same time most complicated issues of quantum statistics. On the o ...
PHY 551 - Stony Brook University
... photon, boson Z, W+, W(virtual – “off mass-shell” particles) gluon Vertex: point where fermion and boson lines connect. Energy, momentum, charge, lepton and baryon ...
... photon, boson Z, W+, W(virtual – “off mass-shell” particles) gluon Vertex: point where fermion and boson lines connect. Energy, momentum, charge, lepton and baryon ...
superstring theory: past, present, and future john h. schwarz
... fermions. Strings with this symmetry are called superstrings. ...
... fermions. Strings with this symmetry are called superstrings. ...
“ Magnetic Monopoles: from Dirac to D-branes”
... esthetically pleasing. The symmetry between the electric and magnetic fields displayed within these equations is blatantly apparent. But, also apparent is the conspicuous absence of a term representing magnetic charge analogous to the electric charge. Motivated by this asymmetry Dirac modified the M ...
... esthetically pleasing. The symmetry between the electric and magnetic fields displayed within these equations is blatantly apparent. But, also apparent is the conspicuous absence of a term representing magnetic charge analogous to the electric charge. Motivated by this asymmetry Dirac modified the M ...
What black holes teach about strongly coupled particles
... Gauge theories are invariant under gauge transformations, symmetry operations that can be implemented independently at each point in space and time. The most familiar example of a gauge transformation comes from classical electrodynamics, in which the scalar (V) and vector (A) potentials can be chan ...
... Gauge theories are invariant under gauge transformations, symmetry operations that can be implemented independently at each point in space and time. The most familiar example of a gauge transformation comes from classical electrodynamics, in which the scalar (V) and vector (A) potentials can be chan ...
Field and gauge theories
... Infinities in QED are results of closed loops of virtual particles – must integrate over all possible values of momentum around loop and momentum is not uniquely defined (off-the-shell) Closely related to failures of classical EM, like infinite selfenergy of electron , and to vacuum polarization ...
... Infinities in QED are results of closed loops of virtual particles – must integrate over all possible values of momentum around loop and momentum is not uniquely defined (off-the-shell) Closely related to failures of classical EM, like infinite selfenergy of electron , and to vacuum polarization ...
Document
... then should have dimension 4-n, which is –ve and theory will diverge. • Spinor self interactions are not allowed e.g. , d = 9/2. Not Lorentz invariant. ...
... then should have dimension 4-n, which is –ve and theory will diverge. • Spinor self interactions are not allowed e.g. , d = 9/2. Not Lorentz invariant. ...
A path towards quantum gravity
... Type-I gauge theories • These equations define type-I gauge theories (e.g. Maxwell, Yang—Mills, Einstein). • All these theories, being gauge theories, need supplementary conditions, since the second functional derivative of S is not an invertible operator. After imposing such conditions, the theori ...
... Type-I gauge theories • These equations define type-I gauge theories (e.g. Maxwell, Yang—Mills, Einstein). • All these theories, being gauge theories, need supplementary conditions, since the second functional derivative of S is not an invertible operator. After imposing such conditions, the theori ...
The Differential Geometry and Physical Basis for the Application of
... In 1959 Aharonov and Bohm established the primacy of the vector potential by proposing an electron diffraction experiment to demonstrate a quantum mechanical effect: A long solenoid lies behind a wall with two slits and is positioned between the slits and parallel to them. An electron source in fron ...
... In 1959 Aharonov and Bohm established the primacy of the vector potential by proposing an electron diffraction experiment to demonstrate a quantum mechanical effect: A long solenoid lies behind a wall with two slits and is positioned between the slits and parallel to them. An electron source in fron ...
The Abel Committee`s citation
... solution of the polaron problem of Euclidean quantum field theory in 1969, Varadhan began to shape a general theory of large deviations that was much more than a quantitative improvement of convergence rates. It addresses a fundamental question: what is the qualitative behaviour of a stochastic syst ...
... solution of the polaron problem of Euclidean quantum field theory in 1969, Varadhan began to shape a general theory of large deviations that was much more than a quantitative improvement of convergence rates. It addresses a fundamental question: what is the qualitative behaviour of a stochastic syst ...
preprint
... theory of spacetime will dispense with the traditional notion of the passage of time. In particular, I prove that quantum theory rules out the possibility of any quantity that one might call “the time interval between two events.” The mathematical fact on which my philosophical argument is based has ...
... theory of spacetime will dispense with the traditional notion of the passage of time. In particular, I prove that quantum theory rules out the possibility of any quantity that one might call “the time interval between two events.” The mathematical fact on which my philosophical argument is based has ...
Classical solutions of open string field theory
... Therefore in this class of solutions, the trivial ones are those for which F2(0) ≠ 1. Tachyon vacuum solutions are those for which F2(0) = 1 but the zero of 1-F2 is first order When the order of zero of 1-F2 at K=0 is of higher order the solution is not quite well defined, but it has been conjecture ...
... Therefore in this class of solutions, the trivial ones are those for which F2(0) ≠ 1. Tachyon vacuum solutions are those for which F2(0) = 1 but the zero of 1-F2 is first order When the order of zero of 1-F2 at K=0 is of higher order the solution is not quite well defined, but it has been conjecture ...
Ab Initio Predictions for Potential Energy Surfaces for Chemical
... procedures, particularly for forces. Many energy extrapolation methods have been used, but for entirely satisfactory results it is equally important to know the forces at the basis set limit to converge transition state structures and associated activation barriers. We introduced our singular value ...
... procedures, particularly for forces. Many energy extrapolation methods have been used, but for entirely satisfactory results it is equally important to know the forces at the basis set limit to converge transition state structures and associated activation barriers. We introduced our singular value ...
String Theory
... Quantum Theory only works when gravity is neglected and General Relativity works only if we neglect Quantum Theory and assume that the universe is purely classical. Early String Theory combined these two and was considered a theory of Quantum Gravity. ...
... Quantum Theory only works when gravity is neglected and General Relativity works only if we neglect Quantum Theory and assume that the universe is purely classical. Early String Theory combined these two and was considered a theory of Quantum Gravity. ...
Bethe Ansatz in AdS/CFT: from local operators to classical strings
... Cosmology Particle Astrophysics and String theory* (Stockholm ...
... Cosmology Particle Astrophysics and String theory* (Stockholm ...