Now showing items 1-10 of 738
Thermal baths as quantum resources: More friends than foes?
(IOP Publishing, 2015-11-06)
In this article we argue that thermal reservoirs (baths) are potentially useful resources in processes involving atoms interacting with quantized electromagnetic fields and their applications to quantum technologies. One ...
Enhancement of quantum speed limit time due to cooperative effects in multilevel systems
(IOP Publishing, 2015-08)
Deriving minimum evolution times is of paramount importance in quantum mechanics. Bounds on the speed of evolution are given by the so called quantum speed limit (QSL). In this work we use quantum optimal control methods ...
CONTROLLED GROWTH OF CDS QUANTUM DOTS
(Science Of Adavanced Materials, 2013-01-16)
Remote state preparation of a photonic quantum state via quantum teleportation
(Springer Verlag Berlín, 2014-06)
We demonstrate an experimental realization of remote state preparation via the quantum teleportation algorithm, using an entangled photon pair in the polarization degree of freedom as the quantum resource. The input state ...
Optimal control of a charge qubit in a double quantum dot with a Coulomb impurity
(Elsevier Science, 2017-02)
We study the efficiency of modulated external electric pulses to produce efficient and fast charge localization transitions in a two-electron double quantum dot. We use a configuration interaction method to calculate the ...
Selective and efficient quantum state tomography and its application to quantum process tomography
(American Physical Society, 2013-01-18)
We present a method for quantum state tomography that enables the efficient estimation, with fixed precision, of any of the matrix elements of the density matrix of a state, provided that the states from the basis in which ...
Controlling open quantum systems using fast transitions
(American Physical Society, 2013-02-13)
Unitary control and decoherence appear to be irreconcilable in quantum mechanics. When a quantum system interacts with an environment, control strategies usually fail due to decoherence. In this article we implement a ...
Time-optimal control fields for quantum systems with multiple avoided crossings
(American Physical Society, 2015-10)
We study time-optimal protocols for controlling quantum systems which show several avoided level crossings in their energy spectrum. The structure of the spectrum allows us to generate a robust guess which is time-optimal ...
Is there a flaw in the seminal Bohr-Rosenfeld paper on the measurement problem of the free quantum electromagnetic field?
(Facultad de IngenieríaIngeniería TelemáticaDepartamento Académico de Tecnologías de Información y Comunicaciones (TICs), 2000-03-01)