References of "Bastin, Thierry"
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See detailCold three-level atom micromaser in the far-detuning regime
Martin, John ULg; Bastin, Thierry ULg

in Physical Review. A (2007), 75

We analyze the quantum theory of the two-mode micromaser pumped by cold three-level atoms with a Lambda-configuration under the two-photon resonance condition. We focus more specifically on the large ... [more ▼]

We analyze the quantum theory of the two-mode micromaser pumped by cold three-level atoms with a Lambda-configuration under the two-photon resonance condition. We focus more specifically on the large detuning limit where the detuning between the two cavity mode frequencies and the two atomic transition frequencies is large in comparison with the atom-cavity coupling constants. We show that this regime can mimic a virtual two-level atom micromaser without spontaneous emission where the cavity acts for the atoms as a potential barrier or a potential well (depending on the sign of the detuning) and a zero potential but no more both as a potential barrier and a potential well as it is the case for the usual cold two-level atom micromaser [M. O. Scully, G. M. Meyer, and H. Walther, Phys. Rev. Lett. 76, 4144 (1996)]. This introduces interesting options for engineering the interaction between the cold atoms and the cavity. The elimination of the spontaneous emission solves a major issue of the conventional cold two-level atom micromaser as the transit time of cold atoms inside and in the vicinity of the cavity is usually much larger than the atomic level lifetimes. It is also shown that the cold atom regime is very sensitive to the sign of the detuning (in contrast to the hot atom regime) and that, according to this sign, the cavity may speed up or slow down the incident three-level atoms after their interaction with the field. [less ▲]

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See detailGeneration of Symmetric Dicke States of Remote Qubits with Linear Optics
Thiel, C.; von Zanthier, J.; Bastin, Thierry ULg et al

in Physical Review Letters (2007), 99

We propose a method for generating all symmetric Dicke states, either in the long-lived internal levels of N massive particles or in the polarization degrees of freedom of photonic qubits, using linear ... [more ▼]

We propose a method for generating all symmetric Dicke states, either in the long-lived internal levels of N massive particles or in the polarization degrees of freedom of photonic qubits, using linear optical tools only. By means of a suitable multiphoton detection technique, erasing Welcher-Weg information, our proposed scheme allows the generation and measurement of an important class of entangled multiqubit states. [less ▲]

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See detailQuantum imaging with incoherent photons
von Zanthier, J.; Thiel, C.; Bastin, Thierry ULg et al

Conference (2007)

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See detailGeneration of Dicke states in Distant Matter Qubits with Linear Optics
Thiel, C.; von Zanthier, J.; Bastin, Thierry ULg et al

Conference (2007)

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See detailCreation of Dicke States in Distant Qubits with Linear Optics
Thiel, C.; von Zanthier, J.; Bastin, Thierry ULg et al

Conference (2007)

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See detailQuantum imaging with incoherent photons
Thiel, C.; Solano, E.; Bastin, Thierry ULg et al

Conference (2007)

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See detailMeasurement-induced spatial modulation of spontaneous decay and photon arrival times
von Zanthier, J.; Bastin, Thierry ULg; Agarwal, G. S.

Conference (2007)

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See detailCreation of Dicke States in Distant Qubits with Linear Optics
Thiel, C.; von Zanthier, J.; Bastin, Thierry ULg et al

Conference (2007)

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See detailLe micromaser à atomes froids
Martin, John ULg; Bastin, Thierry ULg

Scientific conference (2006, January)

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See detailMeasure of phonon-number moments and motional quadratures through infinitesimal-time probing of trapped ions
Bastin, Thierry ULg; von Zanthier, J.; Solano, E.

in Journal of Physics : B Atomic Molecular & Optical Physics (2006), 39

A method for gaining information about the phonon-number moments and the generalized nonlinear and linear quadratures in the motion of trapped ions (in particular, position and momentum) is proposed ... [more ▼]

A method for gaining information about the phonon-number moments and the generalized nonlinear and linear quadratures in the motion of trapped ions (in particular, position and momentum) is proposed, valid inside and outside the Lamb-Dicke regime. It is based on the measurement of first time derivatives of electronic populations, evaluated at the motion-probe interaction time tau = 0. In contrast to other state-reconstruction proposals, based on measuring Rabi oscillations or dispersive interactions, the present scheme can be performed resonantly at infinitesimal short motion-probe interaction times, remaining thus insensitive to decoherence processes. [less ▲]

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See detailMeasurement-induced spatial modulation of spontaneous decay and photon arrival times
von Zanthier, J.; Bastin, Thierry ULg; Agarwal, G. S.

in Physical Review. A (2006), 74

We report a way of manipulating the spontaneous emission process leading to a spatial modulation of spontaneous decay. The effect is observed in the case of coherently driven atoms separated by less than ... [more ▼]

We report a way of manipulating the spontaneous emission process leading to a spatial modulation of spontaneous decay. The effect is observed in the case of coherently driven atoms separated by less than a transition wavelength. It is quantified by Glauber's photon-photon second-order correlation function. We show that the photon arrival time, usually regarded as an entirely random process, depends not only on where a photon is detected but also on where a former photon had been recorded previously. Our results shed light on the unexpected consequences of state reduction and entanglement for the fundamental process of spontaneous emission. [less ▲]

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See detailDecoherence of an Entangled Atomic Pair
Agarwal, G. S.; Bastin, Thierry ULg; von Zanthier, J.

Conference (2006)

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See detailGenerating Dicke states with photodetector arrays in trapped ions
Thiel, C.; von Zanthier, J.; Bastin, Thierry ULg et al

Poster (2006)

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See detailMeasurement-induced spatial modulation of spontaneous decay and photon arrival times
von Zanthier, J.; Bastin, Thierry ULg; Agarwal, G. S.

Poster (2006)

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See detailNon-classical Radiation from Two Atoms and Quantum Search Algorithms
Agarwal, G. S.; von Zanthier, J.; Bastin, Thierry ULg

Conference (2005)

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See detailLes Horloges Atomiques
Bastin, Thierry ULg

in Bulletin de la Société Royale des Sciences de Liège (2005), 74

In this paper, a short review of the basic physical mechanisms underlying the atomic clocks is given. We cover the standard cesium atomic clocks along with the new generation of cold atom clocks.

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See detailDSM from SPOT5-HRS images: extraction and validation
Cornet, Yves ULg; Grevesse, J.; Binard, Marc ULg et al

in Jacobsen, K.; Goossens, Rudi; Winkler, P. (Eds.) Proceding of the EARSeL Workshop 3D-Remote Sensing: Porto, June 10 - 11, 2005 (2005)

Detailed reference viewed: 97 (32 ULg)