Birkeland, Darboux and Poincaré: Motion of an Electric Charge in
... this line, colliding with the magnetic pole. In this case the minimum distance of approach of the charge to the pole is x0 = 0. It turns out that for extremely small but nonzero x0 a charged particle with spin (such as an electron or proton) also collides with the pole in a classical analysis, as di ...
... this line, colliding with the magnetic pole. In this case the minimum distance of approach of the charge to the pole is x0 = 0. It turns out that for extremely small but nonzero x0 a charged particle with spin (such as an electron or proton) also collides with the pole in a classical analysis, as di ...
New topological excitations and melting transitions in quantum Hall systems
... this work we present experimental and theoretical evidence that the formation of charged defects involves a shape transformation of the underlying bubbles; the presence of charged excitations causes the crystalline bubbles to elongate, change symmetry, and form topological textures. While such behav ...
... this work we present experimental and theoretical evidence that the formation of charged defects involves a shape transformation of the underlying bubbles; the presence of charged excitations causes the crystalline bubbles to elongate, change symmetry, and form topological textures. While such behav ...
Introduction to Quantum Information Science
... The next major step came in 1985 when David Deutsch was searching for a device that could e ciently simulate an arbitrary physical system. His main goal was to disprove the strong Church-Turing thesis and nd something more powerful then a Universal Probabilistic Turing Machine. According to physics ...
... The next major step came in 1985 when David Deutsch was searching for a device that could e ciently simulate an arbitrary physical system. His main goal was to disprove the strong Church-Turing thesis and nd something more powerful then a Universal Probabilistic Turing Machine. According to physics ...
Singularity of the time-energy uncertainty in adiabatic perturbation
... uniformly rotating magnetic field. Due to a non-adiabatic effect, its quantum trajectory on a Bloch sphere is a cycloid traced by a circle rolling along an adiabatic path. As the magnetic field rotates more and more slowly, the time-energy uncertainty, proportional to the length of the quantum traje ...
... uniformly rotating magnetic field. Due to a non-adiabatic effect, its quantum trajectory on a Bloch sphere is a cycloid traced by a circle rolling along an adiabatic path. As the magnetic field rotates more and more slowly, the time-energy uncertainty, proportional to the length of the quantum traje ...
Inhaltsverzeichnis • Contents - the Max Planck Institute for the
... 1.2 P. Fulde, G. Zwicknagl, A. Yaresko : UP t3 : dual character of 5f electrons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 1.3 P. Fulde, K. Penc, N. Shannon, A. Yaresko, A. Zvyagin : Fractional charges and heavy fermions in pyrochlore lattices . . . . . . . 51 1.4 E. Brandt, J. ...
... 1.2 P. Fulde, G. Zwicknagl, A. Yaresko : UP t3 : dual character of 5f electrons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 1.3 P. Fulde, K. Penc, N. Shannon, A. Yaresko, A. Zvyagin : Fractional charges and heavy fermions in pyrochlore lattices . . . . . . . 51 1.4 E. Brandt, J. ...
Three Myths About Time Reversal in Quantum Theory 1. Introduction
... move in the reverse direction, sure enough, but what happens to a wavefunction? What happens to an electron’s spin? Such questions demand a more robust way to understand the meaning of time reversal in quantum theory. It’s an important matter to settle, as the standard mathematical definition of tim ...
... move in the reverse direction, sure enough, but what happens to a wavefunction? What happens to an electron’s spin? Such questions demand a more robust way to understand the meaning of time reversal in quantum theory. It’s an important matter to settle, as the standard mathematical definition of tim ...
Open Quantum System Studies of Optical Lattices and Nonlinear
... A generalized open quantum theory that models the transport properties of bosonic systems is derived from first principles. This theory is shown to correctly describe the long-time behavior of a specific class of non-Markovian system-reservoir interactions. Starting with strongly-interacting bosons ...
... A generalized open quantum theory that models the transport properties of bosonic systems is derived from first principles. This theory is shown to correctly describe the long-time behavior of a specific class of non-Markovian system-reservoir interactions. Starting with strongly-interacting bosons ...
Renormalization
In quantum field theory, the statistical mechanics of fields, and the theory of self-similar geometric structures, renormalization is any of a collection of techniques used to treat infinities arising in calculated quantities.Renormalization specifies relationships between parameters in the theory when the parameters describing large distance scales differ from the parameters describing small distances. Physically, the pileup of contributions from an infinity of scales involved in a problem may then result in infinities. When describing space and time as a continuum, certain statistical and quantum mechanical constructions are ill defined. To define them, this continuum limit, the removal of the ""construction scaffolding"" of lattices at various scales, has to be taken carefully, as detailed below.Renormalization was first developed in quantum electrodynamics (QED) to make sense of infinite integrals in perturbation theory. Initially viewed as a suspect provisional procedure even by some of its originators, renormalization eventually was embraced as an important and self-consistent actual mechanism of scale physics in several fields of physics and mathematics. Today, the point of view has shifted: on the basis of the breakthrough renormalization group insights of Kenneth Wilson, the focus is on variation of physical quantities across contiguous scales, while distant scales are related to each other through ""effective"" descriptions. All scales are linked in a broadly systematic way, and the actual physics pertinent to each is extracted with the suitable specific computational techniques appropriate for each.