Výsledky vyhledávání - "Veyron, Romain"

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Quantum jump photodetector for narrowband photon counting with a single atom

Autor: Zarraoa, Laura, Veyron, Romain, Lamich, Tomas, Bianchet, Lorena C., Mitchell, Morgan W.

Publikováno v: Physical Review RESEARCH 6, 033338 (2024)

Using a single neutral 87Rb atom held in an optical trap, and "quantum jump" detection of single-photon-initiated state changes, we demonstrate a single-photon quantum jump photodetector (QJPD) with intrinsically narrow bandwidth and strong rejection

Externí odkaz: http://arxiv.org/abs/2403.08674

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Telling different unravelings apart via nonlinear quantum-trajectory averages

Autor: Piñol, Eloy, Mavrogordatos, Th. K., Keys, Dustin, Veyron, Romain, Sierant, Piotr, García-March, Miguel Angel, Grandi, Samuele, Mitchell, Morgan W., Wehr, Jan, Lewenstein, Maciej

Publikováno v: Phys. Rev. Research 6, L032057 (2024)

The Gorini-Kossakowski-Sudarshan-Lindblad master equation (ME) governs the density matrix of open quantum systems (OQSs). When an OQS is subjected to weak continuous measurement, its state evolves as a stochastic quantum trajectory, whose statistical

Externí odkaz: http://arxiv.org/abs/2312.03452

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In situ subwavelength microscopy of ultracold atoms using dressed excited states

Autor: Veyron, Romain, Gérent, Jean-Baptiste, Baclet, Guillaume, Mancois, Vincent, Bouyer, Philippe, Bernon, Simon

In this work, we implement a new method for imaging ultracold atoms with subwavelength resolution capabilities and determine its regime of validity. It uses the laser driven interaction between excited states to engineer hyperfine ground state popula

Externí odkaz: http://arxiv.org/abs/2310.09396

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Quantitative absorption imaging of optically dense effective two-level systems

Autor: Veyron, Romain, Mancois, Vincent, Gerent, Jean-Baptiste, Baclet, Guillaume, Bouyer, Philippe, Bernon, Simon

Publikováno v: Phys. Rev. Research 4, 033033 (2022)

Absorption imaging is a commonly adopted method to acquire, with high temporal resolution, spatial information on a partially transparent object. It relies on the interference between a probe beam and the coherent response of the object. In the low s

Externí odkaz: http://arxiv.org/abs/2110.12505

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Effective two-level approximation of a multi-level system driven by coherent and incoherent fields

Autor: Veyron, Romain, Mancois, Vincent, Gerent, Jean-Baptiste, Baclet, Guillaume, Bouyer, Philippe, Bernon, Simon

The numerical simulation of multiple scattering in dense ensembles is the mostly adopted solution to predict their complex optical response. While the scalar and vectorial light mediated interactions are accurately taken into account, the computation

Externí odkaz: http://arxiv.org/abs/2110.08894

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Creating and measuring sub-wavelength volumes using quantitative absorption imaging of optically dense ensembles

Autor: Veyron, Romain, Mancois, Vincent, Gérent, Jean-Baptiste, Baclet, Guillaume, Bouyer, Philippe, Bernon, Simon

Quantum gas microscopes have become a major element for quantum simulations using ultra-cold atoms in optical lattices. They are for example used to observe long-range order such as anti-ferromagnetic correlations in far field optical lattices using

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______166::1e0e44fb4c5ac12d242bd4fab2edbfd6
https://hal.science/hal-03943368

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Towards integrated microwave-to-optical conversion by atoms on a superconducting chip

Autor: Gérent, Jean-Baptiste, Veyron, Romain, Mancois, Vincent, Bernon, Simon

The coherent conversion of microwave to optical signals is for now a missing hardware for long-distance quantum communication between superconducting quantum (sub)processors that could form the nodes of a future quantum network. Various architectures

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______166::488fc8fee43a6a8c5744455f052038f9
https://hal.science/hal-03943430

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