搜索结果: 1-14 共查到“理论物理学 Observables”相关记录14条 . 查询时间(0.062 秒)
Observables for bound orbital motion in axially symmetric space-times
Observables axially symmetric space-times General Relativity and Quantum Cosmology
font style='font-size:12px;'>
2011/10/10
Abstract: The periastron shift and the Lense-Thirring effect of bound orbital motion in a general axially symmetric space-time given by Pleba\'nski and Demia\'nski are analyzed. We also define a measu...
An inhomogeneous toy-model of the quantum gravity with explicitly evolvable observables
quantum gravity inhomogeneous toy-model explicitly evolvable observables
font style='font-size:12px;'>
2011/9/30
Abstract: We consider an inhomogeneous (1+1)-dimensional model of the quantum gravity, which has a system of constraints (hamiltonian and momentum ones) by analogy with that of the General Relativity....
Holonomy observables in Ponzano-Regge type state sum models
Holonomy observables Ponzano-Regge type state sum models group elements Chern-Simons theory
font style='font-size:12px;'>
2011/7/29
Abstract: We study observables on group elements in the Ponzano-Regge model. We show that these observables have a natural interpretation in terms of Feynman diagrams on a sphere and contrast them to ...
Feasible optical weak measurements of complementary observables via a single Hamiltonian
optical weak measurements Hamiltonian optical weak measurements
font style='font-size:12px;'>
2011/9/15
We show that the process of three-wave mixing in a non-linear crystal (such as employed in down conversion processes) can be used for versatile weak measurements. That is the crystal field interaction...
Extreme commutative quantum observables are sharp
commutative quantum non-commutativity the limitations of PVMs Quantum Physics
font style='font-size:12px;'>
2011/7/29
Abstract: It is well known that, in the description of quantum observables, positive operator valued measures (POVMs) generalize projection valued measures (PVMs) and they also turn out be more optima...
Two Local Observables are Sufficient to Characterize Maximally Entangled States of N Qubits
Local Observables Characterize Maximally Entangled States
font style='font-size:12px;'>
2010/11/8
Maximally entangled states (MES) represent a valuable resource in quantum information processing. In $N$-qubit systems the MES are $N$-GHZ states, i.e. the collection of $\ket{GHZ_N}=\frac{1}{\sqrt{2}...
Axial and electromagnetic observables of hyperons in 2-flavor chiral perturbation theory
Axial electromagnetic observables of hyperons 2-flavor chiral perturbation theory
font style='font-size:12px;'>
2011/1/7
Two-flavor chiral expansions provide a useful perturbative framework to study hadron properties.
Such expansions should exhibit marked improvement over the conventional three-flavor chiral
expansion...
Spin Observables in Transition-Distribution-Amplitude Studies
Spin Observables Transition-Distribution-Amplitude Studies
font style='font-size:12px;'>
2011/1/10
Exclusive hadronic reactions with a massive lepton pair (`+`) in the final state will be
measured with PANDA at GSI-FAIR and with Compass at CERN, both in p + ¯p ! `+` + an...
Inflationary observables in loop quantum cosmology
Inflationary observables loop quantum cosmology
font style='font-size:12px;'>
2010/12/20
The full set of cosmological observables coming from linear scalar and tensor perturbations of loop quantum cosmology is computed in the presence of inverse-volume corrections.
Spin Observables in Transition-Distribution-Amplitude Studies
Spin Observables Transition-Distribution-Amplitude Studies
font style='font-size:12px;'>
2011/1/6
Exclusive hadronic reactions with a massive lepton pair (`+`) in the final state will be
measured with PANDA at GSI-FAIR and with Compass at CERN, both in p + ¯p ! `+` + an...
Coupled-channels density-matrix approach to low-energy nuclear collision dynamics: A technique for quantifying quantum decoherence effects on reaction observables
Coupled-channels density-matrix low-energy nuclear collision dynamics reaction observables
font style='font-size:12px;'>
2010/11/11
The coupled-channels density-matrix technique for nuclear reaction dynamics, which is based on the Liouville-von Neumann equation with Lindblad dissipative terms, is developed with the inclusion of fu...
Quantum Kinetic Evolution of Marginal Observables
quantum kinetic equation mean-field limit
font style='font-size:12px;'>
2010/10/26
We develop a rigorous formalism for the description of the evolution of observables of quantum systems of particles in the mean-field scaling limit. The corresponding asymptotics of a solution of the ...
Observables for FRW model with cosmological constant in the framework of loop cosmology
cosmological constant framework of loop cosmology
font style='font-size:12px;'>
2010/3/18
We consider a flat cosmological model with a free massless scalar field and the cosmological constant $\Lambda$ in the framework of loop quantum cosmology. The scalar field plays the role of an intrin...
Observables in classical canonical gravity: folklore demystified
classical canonical gravity folklore demystified
font style='font-size:12px;'>
2010/3/17
We give an overview of some conceptual difficulties, sometimes called paradoxes, that have puzzled for years the physical interpetation of classical canonical gravity and, by extension, the canonical ...