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On conformal field theories
 in fourdimensions,” Nucl. Phys. B533
, 1998
"... We review the generalization of field theory to spacetime with noncommuting coordinates, starting with the basics and covering most of the active directions of research. Such theories are now known to emerge from limits of M theory and string theory, and to describe quantum Hall states. In the last ..."
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Cited by 366 (1 self)
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We review the generalization of field theory to spacetime with noncommuting coordinates, starting with the basics and covering most of the active directions of research. Such theories are now known to emerge from limits of M theory and string theory, and to describe quantum Hall states. In the last few years they have been studied intensively, and many qualitatively new phenomena have been discovered, both on the classical and quantum level. Submitted to Reviews of Modern Physics.
Adaptive Dynamics: A Geometrical Study of the Consequences of Nearly . . .
, 1995
"... We set out to explore a class of stochastic processes, called "adaptive dynamics", which supposedly capture some of the essentials of long term biological evolution. These processes have a strong deterministic component. This allows a classification of their qualitative features which in m ..."
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Cited by 185 (18 self)
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We set out to explore a class of stochastic processes, called "adaptive dynamics", which supposedly capture some of the essentials of long term biological evolution. These processes have a strong deterministic component. This allows a classification of their qualitative features which in many aspects is similar to classifications from the theory of deterministic dynamical systems. But they also display a good number of clearcut novel dynamical phenomena.
SCATTERING BETHE ANSATZ APPROACH
, 2010
"... We derive the transport properties of a quantum impurity system, often realized as a quantum dot, subject to a sourcedrain bias voltage at zero temperature and magnetic field. Using the Scattering Bethe Anstaz(SBA), a generalization of the traditional Thermodynamic Bethe Ansatz(TBA) to open systems ..."
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We derive the transport properties of a quantum impurity system, often realized as a quantum dot, subject to a sourcedrain bias voltage at zero temperature and magnetic field. Using the Scattering Bethe Anstaz(SBA), a generalization of the traditional Thermodynamic Bethe Ansatz(TBA) to open
Quantum electrodynamics of strong fields
, 1985
"... Quantum electrodynamics of strong external fields is investigated in the context of atomic physics. If the electromagnetic coupling constant Za becomes sufficiently large ( Z> l / a % 137 for point sources or Z> 172 for extended nuclei) bound electron states can join the negativeenergy conti ..."
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Cited by 175 (3 self)
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Quantum electrodynamics of strong external fields is investigated in the context of atomic physics. If the electromagnetic coupling constant Za becomes sufficiently large ( Z> l / a % 137 for point sources or Z> 172 for extended nuclei) bound electron states can join the negativeenergy continuum of the Dirac equation. The resulting possibility of spontaneous positron production and the new concept of a charged electronpositron vacuum is discussed under several aspects. The autoionization model and the exact overcritical solutions of the singleparticle Dirac equation are contrasted with a quantumfieldtheoretical approach. Nonlinear field effects are shown to have no influence. Vacuum polarization and the selfscreening of extremely strong electric charges are treated explicitly. Adiabatic collisions of heavy ions leading to the transient formation of quasimolecular electron orbitals are suggested as a means for an experimental test of the special features of strongfield QED, After an introduction to the relativistic twocentre Dirac equation, the xray spectroscopy of quasimolecules and the spontaneous and induced positron emission in, for example, UU collisions are discussed. The importance of several background processes is stressed. Finally, strongfield aspects for nuclear matter and in gravitation are mentioned. This review was received in October 1976. + This work was supported by the Gesellschaft fur Schwerionenforschung (GSI) and the
Twoscale difference equations. II. local regularity, infinite products of matrices and fractals
 SIAM JOURNAL OF MATHEMATICAL ANALYSIS
, 1992
"... This paper studies solutions of the functional equation ..."
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Cited by 144 (2 self)
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This paper studies solutions of the functional equation
der
"... der Universität ErlangenNürnberg erscheint seit 1967. Begründet von Prof. Dr. Dr. h. c. mult. Wolfgang HändlerUniversität ErlangenNürnberg ..."
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der Universität ErlangenNürnberg erscheint seit 1967. Begründet von Prof. Dr. Dr. h. c. mult. Wolfgang HändlerUniversität ErlangenNürnberg
Liouville Theory Revisited
, 2001
"... This paper focuses on the understanding of Liouville theory on a (spacetime) cylinder with circumference 27r, timecoordinate t and (periodic) spacecoordinate a as a two dimensional quantum field theory in its own right. (Semi)classically the theory is defined by the action 2 1 2 (1) S = dt/d( ..."
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Cited by 136 (18 self)
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This paper focuses on the understanding of Liouville theory on a (spacetime) cylinder with circumference 27r, timecoordinate t and (periodic) spacecoordinate a as a two dimensional quantum field theory in its own right. (Semi)classically the theory is defined by the action 2 1 2 (1) S = dt
Results 1  10
of
6,493