Zobrazeno 1 - 10
of 249
pro vyhledávání: '"Wallentowitz, S."'
Autor:
Wheatley, R.A., Roble, M., Gence, L., Acuña, C., Rojas-Aedo, R., Hidalgo-Rojas, D., Guzman-De La Cerda, D.E., Vojkovic, S., Seifert, B., Wallentowitz, S., Volkmann, U.G., Diaz-Droguett, D.E.
Publikováno v:
In Journal of Alloys and Compounds 15 March 2021 857
We investigate the dynamics of classical and quantum correlations between two qubits. Each qubit is implemented by a pair of phosphorous impurities embedded in a silicon substrate. The main decoherence mechanism affecting these types of qubits is pro
Externí odkaz:
http://arxiv.org/abs/1409.8551
Autor:
Roble, M., Rojas, S.D., Wheatley, Robert, Wallentowitz, S., Cabrera, A.L., Diaz-Droguett, D.E.
Publikováno v:
In Journal of Solid State Chemistry March 2019 271:314-325
The entanglement dynamics of a pair of donor-based charge qubits is obtained in analytical form. The disentanglement is induced by off resonant scattering of acoustical phonons in the semiconductor host. According to our results a rather unusual reco
Externí odkaz:
http://arxiv.org/abs/1108.2416
We develop an analytical model for describing the dynamics of a donor-based charge quantum bit (qubit). As a result, the quantum decoherence of the qubit is analytically obtained and shown to reveal non-Markovian features: The decoherence rate varies
Externí odkaz:
http://arxiv.org/abs/1006.0515
Autor:
Lastra, F., Wallentowitz, S.
The electronic entanglement between two free atoms initially at rest is obtained including the effects of photon recoil, for the case when quantum dispersion can be neglected during the atomic excited-state lifetime. Different from previous treatment
Externí odkaz:
http://arxiv.org/abs/0911.3564
Starting from the requirement of distinguishability of two atoms by their positions, it is shown that photon recoil has a strong influence on finite-time disentanglement and in some cases prevents its appearance. At near-field inter atomic distances
Externí odkaz:
http://arxiv.org/abs/0811.4399
Autor:
Wallentowitz, S., Toschek, P. E.
The recoil effects of spontaneous photon emissions during optical pumping of a trapped three-level atom are exactly calculated. Without resort to the Lamb-Dicke approximation, and considering arbitrary detuning and saturation of the pump laser, the d
Externí odkaz:
http://arxiv.org/abs/0808.1272
Autor:
Wallentowitz, S., Klimov, A. B.
A model of photo-detection using a Bose--Einstein condensate in an atom-chip based micro trap is analyzed. Atoms absorb photons from the incident light field, receive part of the photon momentum and leave the trap potential. Upon counting of escaped
Externí odkaz:
http://arxiv.org/abs/0805.3801
Autor:
Ivanov, D., Wallentowitz, S.
Publikováno v:
Europhys. Lett. 73, 499 (2006)
It is shown how the quantumness of atom-atom correlations in a trapped bosonic gas can be made observable. Application of continuous feedback control of the center of mass of the atomic cloud is shown to generate oscillations of the spatial extension
Externí odkaz:
http://arxiv.org/abs/quant-ph/0603147