Noise-Aware Quantum Amplitude Estimation

Autor: Steven Herbert, Ifan Williams, Roland Guichard, Darren Ng

Publikováno v: IEEE Transactions on Quantum Engineering, Vol 5, Pp 1-23 (2024)

In this article, based on some simple and reasonable assumptions, we derive a Gaussian noise model for quantum amplitude estimation. We provide results from quantum amplitude estimation run on various IBM superconducting quantum computers and on Quan

Externí odkaz: https://doaj.org/article/785e41b078da4656a405f5df4611e0fb

Integrated multi-modality image-guided navigation for neurosurgery: open-source software platform using state-of-the-art clinical hardware

Autor: Thomas Dowrick, David Pérez-Suárez, Eleanor C. Mackle, Jonathan Shapey, Roland Guichard, Shakeel R. Saeed, Stephen Thompson, Mirek Janatka, Matthew J. Clarkson, Rémi Delaunay, Tom Vercauteren, Sebastien Ourselin, Robert L. Bradford, Anastasis Georgoulas

Publikováno v: International Journal of Computer Assisted Radiology and Surgery

Purpose Image-guided surgery (IGS) is an integral part of modern neuro-oncology surgery. Navigated ultrasound provides the surgeon with reconstructed views of ultrasound data, but no commercial system presently permits its integration with other esse

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42f508f848b15811e9ac1a59c456d653
https://doi.org/10.1007/s11548-021-02374-5

In-depth analysis of Coulomb–Volkov approaches to ionization and excitation by laser pulses

Autor: R. Gayet, Rodriguez V D, Roland Guichard, Eric Cormier, Henri Bachau

Publikováno v: Physica Scripta. 76:397-409

In perturbation conditions, above-threshold ionization spectra produced in the interaction of atoms with femtosecond short-wavelength laser pulses are well predicted by a theoretical approach called CV2-, which is based on Coulomb–Volkov-type state

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc55151b0586247b7332be84c8cd1834
https://doi.org/10.1088/0031-8949/76/4/020

Self-Probing Spectroscopy of the SF 6 Molecule: A Study of the Spectral Amplitude and Phase of the High Harmonic Emission

Autor: Pascal Salières, Bastian Manschwetus, Thierry Ruchon, Roland Guichard, Jérémie Caillat, Richard Taïeb, A. Camper, Thierry Auguste, Marie Géléoc, Nan Lin, Jan Rothhardt, Pierre Breger, Bertrand Carré

Publikováno v: Journal of Physical Chemistry A
Journal of Physical Chemistry A, American Chemical Society, 2014, 119 (23), pp.6111-6122. ⟨10.1021/acs.jpca.5b00446⟩
Journal of Physical Chemistry A, 2014, 119 (23), pp.6111-6122. ⟨10.1021/acs.jpca.5b00446⟩

International audience; We present characterizations of the attosecond pulse train produced in the high harmonic generation (HHG) from SF 6 molecules irradiated by a strong pulsed laser field at 800 nm. At harmonic order 17, we observe a minimum in t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa0e83bbf99519a15edd9aa149a10cd8
https://hal.archives-ouvertes.fr/hal-02148412

Saturation of the nonlinear refractive index in atomic gases

Autor: André D. Bandrauk, Christian Kohler, Szczepan Chelkowski, Stefan Skupin, Luc Bergé, Emmanuel Lorin, Roland Guichard

Publikováno v: Physical Review A. 87

Motivated by the ongoing controversy over the origin of the nonlinear index saturation and subsequent intensity clamping in femtosecond filaments, we study the atomic nonlinear polarization induced by high-intensity ultrashort laser pulses in hydroge

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::100394daf1910d4e94ccb9dc5e24f50b
https://doi.org/10.1103/physreva.87.043811