38 citations · 162 across the 11 of their papers we have counts for
11 papers
noise in heavy traffic M/M/1 queue
Thomas Vanderbruggen
We study the power spectral density of continuous time Markov chains and explicit its relationship with the eigenstructure of the infinitesimal generator. This result helps us unde…
Multi-second magnetic coherence in a single domain spinor Bose-Einstein condensate
Silvana Palacios, Simon Coop, Pau Gomez +4
We describe a compact, robust and versatile system for studying magnetic dynamics in a spinor Bose-Einstein condensate. Condensates of 87 Rb are produced by all-optical evaporation…
Strong light shifts from near-resonant and polychromatic fields: comparison of Floquet theory and experiment
Simon Coop, Silvana Palacios, Pau Gomez +3
We present a non-perturbative numerical technique for calculating strong light shifts in atoms under the influence of multiple optical fields with arbitrary polarization. We confir…
Absolute frequency references at 1529 nm and 1560 nm using modulation transfer spectroscopy
Y. Natali Martinez de Escobar, Silvana Palacios Álvarez, Simon Coop +3
We demonstrate a double optical frequency reference (1529 nm and 1560 nm) for the telecom C-band using Rb modulation transfer spectroscopy. The two reference frequencies are…
Spontaneous PT symmetry breaking of a ferromagnetic superfluid in a gradient field
Thomas Vanderbruggen, Silvana Palacios, Simon Coop +2
We consider the interaction of a ferromagnetic spinor Bose-Einstein condensate with a magnetic field gradient. The magnetic field gradient realizes a spin-position coupling that ex…
Feedback control of coherent spin states using weak nondestructive measurements
Thomas Vanderbruggen, Ralf Kohlhaas, Andrea Bertoldi +3
We consider the decoherence of a pseudo-spin ensemble under collective random rotations, and study, both theoretically and experimentally, how a nondestructive measurement combined…
Near-resonant optical forces beyond the two-level approximation for a continuous source of spin-polarized cold atoms
Thomas Vanderbruggen, Morgan Mitchell
We propose a method to generate a source of spin-polarized cold atoms which are continuously extracted and guided from a magneto-optical trap using an atom-diode effect. We show th…
Feedback control of trapped coherent atomic ensembles
T. Vanderbruggen, R. Kohlhaas, A. Bertoldi +4
We demonstrate how to use feedback to control the internal states of trapped coherent ensembles of two-level atoms, and to protect a superposition state against the decoherence ind…
Robust laser frequency stabilization by serrodyne modulation
Ralf Kohlhaas, Thomas Vanderbruggen, Simon Bernon +3
We report the relative frequency stabilization of a distributed feedback erbium-doped fiber laser on an optical cavity by serrodyne frequency shifting. A correction bandwidth of 2.…
Heterodyne non-demolition measurements on cold atomic samples: towards the preparation of non-classical states for atom interferometry
Simon Bernon, Thomas Vanderbruggen, Ralf Kohlhaas +3
We report on a novel experiment to generate non-classical atomic states via quantum non-demolition (QND) measurements on cold atomic samples prepared in a high finesse ring cavity.…
Spin-squeezing and Dicke state preparation by heterodyne measurement
Thomas Vanderbruggen, Simon Bernon, Andréa Bertoldi +2
We investigate the quantum non-demolition (QND) measurement of an atomic population based on a heterodyne detection and show that the induced back-action allows to prepare both spi…