Two-particle Harmonic Oscillator in a One
... During the last decades, there has been great interest in the model of a harmonic oscillator confined to boxes of different shapes and sizes [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23]. Such a model has been suitable for the study of several physical problems, r ...
... During the last decades, there has been great interest in the model of a harmonic oscillator confined to boxes of different shapes and sizes [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23]. Such a model has been suitable for the study of several physical problems, r ...
Chaotic field theory: a sketch
... statistical mechanics, their re-examination led to path integral formulations such as the lattice QCD [3]. In lattice theories quantum uctuations explore the full gauge group manifold, and classical dynamics of Yang–Mills elds plays no role. We propose to re-examine here the path integral formulat ...
... statistical mechanics, their re-examination led to path integral formulations such as the lattice QCD [3]. In lattice theories quantum uctuations explore the full gauge group manifold, and classical dynamics of Yang–Mills elds plays no role. We propose to re-examine here the path integral formulat ...
The Theorem of Ostrogradsky
... It might seem curious that Ostrogradsky did not appreciate the importance of his construction to fundamental theory. However, one must recall that the researchers of his time were just beginning to make the connection between energy functionals and the concept of stability — which in those days mea ...
... It might seem curious that Ostrogradsky did not appreciate the importance of his construction to fundamental theory. However, one must recall that the researchers of his time were just beginning to make the connection between energy functionals and the concept of stability — which in those days mea ...
Effective Field Theories, Reductionism and Scientific Explanation Stephan Hartmann
... small photon energies within the framework of the quantum theory of fields developed by Paul Dirac a couple of years earlier. Euler and Heisenberg derived a non-linear modification of Maxwell’s equations which could however be interpreted in an intuitive way. Another early example of an EFT is Fermi’s ...
... small photon energies within the framework of the quantum theory of fields developed by Paul Dirac a couple of years earlier. Euler and Heisenberg derived a non-linear modification of Maxwell’s equations which could however be interpreted in an intuitive way. Another early example of an EFT is Fermi’s ...
“Shut The Front Door!”: Obviating the Challenge of Large
... Physics has been slowly and reluctantly beginning to address the role and fundamental basis of the ‘observer’ which has until now also been considered metaphysical and beyond the mandate empirical rigor. It is suggested that the fundamental premise of the currently dominant view of ‘Cognitive Theory ...
... Physics has been slowly and reluctantly beginning to address the role and fundamental basis of the ‘observer’ which has until now also been considered metaphysical and beyond the mandate empirical rigor. It is suggested that the fundamental premise of the currently dominant view of ‘Cognitive Theory ...
A BRIEF HISTORY OF SPACE-TIME∗ 1 Introduction Up to the
... to classes of space-times picked out by dynamical equations for the inertiogravitational field. Before going into more detail, let me situate these theories with respect to a cube that is even more fascinating — at least for a physicist — than the Rubik cube. I shall call it the “”Bronstein cube” si ...
... to classes of space-times picked out by dynamical equations for the inertiogravitational field. Before going into more detail, let me situate these theories with respect to a cube that is even more fascinating — at least for a physicist — than the Rubik cube. I shall call it the “”Bronstein cube” si ...
Semi-Classical Theory for Non-separable Systems
... is the Heisenberg time derivative off, k(T) = Qr-' tr[e-D"s(f)fP], ...
... is the Heisenberg time derivative off, k(T) = Qr-' tr[e-D"s(f)fP], ...
Abstracts
... dynamics discussed in several contributions to this conference. Given an unstable system we have two ways to achieve that its state will remain within its state Hilbert space, either by switching off the interaction responsible for the decay or by a permanent Zeno-type system monitoring. A natural q ...
... dynamics discussed in several contributions to this conference. Given an unstable system we have two ways to achieve that its state will remain within its state Hilbert space, either by switching off the interaction responsible for the decay or by a permanent Zeno-type system monitoring. A natural q ...
Spectral Analysis of Nonrelativistic Quantum Electrodynamics
... In this lecture I review the progress achieved during the past decade on the mathematical description of quantum mechanical matter interacting with the quantized radiation field. My main focus will be on the results I have obtained in collaboration with Jürg Fröhlich and Israel Michael Sigal [8, 9 ...
... In this lecture I review the progress achieved during the past decade on the mathematical description of quantum mechanical matter interacting with the quantized radiation field. My main focus will be on the results I have obtained in collaboration with Jürg Fröhlich and Israel Michael Sigal [8, 9 ...
Tight-binding model
... new viewpoints will be presented in this chapter, e.g., considering a gauge for describing inhomogeneous fields, and the description of spin-orbit coupling. The application of the tight-binding approach to spin-dependent transport calculations will be treated in some detail since this is a more rece ...
... new viewpoints will be presented in this chapter, e.g., considering a gauge for describing inhomogeneous fields, and the description of spin-orbit coupling. The application of the tight-binding approach to spin-dependent transport calculations will be treated in some detail since this is a more rece ...