Quantum kinetic theory for a condensed bosonic gas
... we obtain kinetic equations that describe the temporal evolution of the expectation value of any ~single-time! observable. As a specific application of this formulation, we then assume that the condensed gas can be described essentially by the dynamic evolution of mean fields and normal and anomalou ...
... we obtain kinetic equations that describe the temporal evolution of the expectation value of any ~single-time! observable. As a specific application of this formulation, we then assume that the condensed gas can be described essentially by the dynamic evolution of mean fields and normal and anomalou ...
Electronic Structure of Multi-Electron Quantum Dots
... ‡ Introduction Quantum dots are artificially fabricated atoms, in which charge carriers are confined in all three dimensions just like electrons in real atoms. Consequently, they exhibit properties normally associated with real atoms such as quantised energy levels and shell structures. These proper ...
... ‡ Introduction Quantum dots are artificially fabricated atoms, in which charge carriers are confined in all three dimensions just like electrons in real atoms. Consequently, they exhibit properties normally associated with real atoms such as quantised energy levels and shell structures. These proper ...
Comparison of Genetic Algorithm and Quantum Genetic Algorithm
... equivalent for all problem instances. This because the number of items is so small (we have 2^100 possibility). However, augmenting the number of items (500 items where we have 2^500 possibility) leads QGA to behave better than CGA, and this in all problem solution variants. By using repairing metho ...
... equivalent for all problem instances. This because the number of items is so small (we have 2^100 possibility). However, augmenting the number of items (500 items where we have 2^500 possibility) leads QGA to behave better than CGA, and this in all problem solution variants. By using repairing metho ...
quantum computer - Caltech Particle Theory
... Spectacular quantum speedups seem to be possible only for problems with special structure, not for NP-complete problems like 3-SAT. (Quantum physics speeds up unstructured search quadratically, not exponentially.) ...
... Spectacular quantum speedups seem to be possible only for problems with special structure, not for NP-complete problems like 3-SAT. (Quantum physics speeds up unstructured search quadratically, not exponentially.) ...
Lecture 4
... that don’t seem to have a long range force associated with them! ❍ Perhaps these are not exact symmetries! ■ Evidence for neutrino oscillation implies lepton number violation. ★ Theories with local gauge invariance can be renormalizable ☞ can use perturbation theory to calculate decay rates, cro ...
... that don’t seem to have a long range force associated with them! ❍ Perhaps these are not exact symmetries! ■ Evidence for neutrino oscillation implies lepton number violation. ★ Theories with local gauge invariance can be renormalizable ☞ can use perturbation theory to calculate decay rates, cro ...
Effective Field Theories for Topological states of Matter
... in some simple cases they are known to be ground states of a model Hamiltonian. In the last section, I will briefly describe one important approach based on conformal field theory. The methods just mentioned are all describing the microscopic physics, but there are complementary approaches based on ...
... in some simple cases they are known to be ground states of a model Hamiltonian. In the last section, I will briefly describe one important approach based on conformal field theory. The methods just mentioned are all describing the microscopic physics, but there are complementary approaches based on ...
Observables and Measurements in Quantum Mechanics
... system, whose properties are to be measured, the measuring apparatus itself, which interacts with the system under observation, and the environment surrounding the apparatus whose presence supplies the decoherence needed so that, ‘for all practical purposes (FAPP)’, the apparatus behaves like a clas ...
... system, whose properties are to be measured, the measuring apparatus itself, which interacts with the system under observation, and the environment surrounding the apparatus whose presence supplies the decoherence needed so that, ‘for all practical purposes (FAPP)’, the apparatus behaves like a clas ...
Implications of Quantum Informational Entropy in Some
... and eproduction in any medium, provided the original work is properly cited. ...
... and eproduction in any medium, provided the original work is properly cited. ...
Broken symmetry revisited - Homepages of UvA/FNWI staff
... (gauge) symmetry. The signature of a broken continuous global symmetry group G in a physical system is the occurrence of massless scalar degrees of freedom, the so-called Goldstone bosons. Specifically, each broken generator of G gives rise to a massless Goldstone boson field. Well-known realization ...
... (gauge) symmetry. The signature of a broken continuous global symmetry group G in a physical system is the occurrence of massless scalar degrees of freedom, the so-called Goldstone bosons. Specifically, each broken generator of G gives rise to a massless Goldstone boson field. Well-known realization ...