Results 11 to 20 of about 401 (36)
Some Mutant Forms of Quantum Mechanics
, 2012 We construct a `mutant' form of quantum mechanics on a vector space over the finite Galois field GF(q). We find that the correlations in our model do not violate the Clauser-Horne-Shimony-Holt (CHSH) version of Bell's inequality, despite the fact that ...
Chang, Lay Nam +3 more
core +1 more source
A quantum motor: directed wavepacket motion in an optical lattice
, 2011 We propose a method for arbitrary manipulations of a quantum wavepacket in an optical lattice by a suitable modulation of the lattice amplitude. A theoretical model allows to determine the modulation corresponding to a given wavepacket motion, so that ...
Garreau, Jean Claude +2 more
core +2 more sources
Robust quantum control by shaped pulse [PDF]
, 2013 Considering the problem of the control of a two-state quantum system by an external field, we establish a general and versatile method that allows the derivation of smooth pulses, suitable for ultrafast applications, that feature the properties of high ...
Daems, D. +3 more
core +2 more sources
Four remarks on spin coherent states
, 2014 We discuss how to recognize the constellations seen in the Majorana representation of quantum states. Then we give explicit formulas for the metric and symplectic form on SU(2) orbits containing general number states.
Baecklund, Anna, Bengtsson, Ingemar
core +1 more source
Multipartite fully entangled fraction
, 2015 Fully entangled fraction is a definition for bipartite states, which is tightly related to bipartite maximally entangled states, and has clear experimental and theoretical significance.
Xu, Jianwei
core +1 more source
Tensorial description of quantum mechanics
, 2013 Relevant algebraic structures for the description of Quantum Mechanics in the Heisenberg picture are replaced by tensorfields on the space of states.
Clemente-Gallardo, J., Marmo, G.
core +1 more source
Wavefunctios of log-periodic oscillators
, 2011 We use the Lewis and Riesenfeld invariant method [\textit{J. Math. Phys.} \textbf{10}, 1458 (1969)] and a unitary transformation to obtain the exact Schr\"{o}dinger wave functions for time-dependent harmonic oscillators exhibiting log-periodic-type ...
Bessa, V., Guedes, I.
core +1 more source
Weak Values as Context Dependent Values of Observables and Born's Rule
, 2011 We characterize a value of an observable by a `sum rule' for generally non-commuting observables and a `product rule' when restricted to a maximal commuting subalgebra of observables together with the requirement that the value is unity for the ...
Hosoya, Akio, Koga, Minoru
core +1 more source
Uncertainty Relation Revisited from Quantum Estimation Theory
, 2011 By invoking quantum estimation theory we formulate bounds of errors in quantum measurement for arbitrary quantum states and observables in a finite-dimensional Hilbert space.
A. S. Holevo +10 more
core +1 more source
Geometry of quantum state manifolds generated by the Lie algebra operators
, 2018 The Fubini-Study metric of quantum state manifold generated by the operators which satisfy the Heisenberg Lie algebra is calculated. The similar problem is studied for the manifold generated by the so(3) Lie algebra operators.
Kuzmak, A. R.
core +1 more source