Timothée Goubault de Brugière
A5080976914- Neutrino Physics Research
- Particle physics theoretical and experimental studies
- Astrophysics and Cosmic Phenomena
- Quantum Computing Algorithms and Architecture
- Quantum Information and Cryptography
- Quantum-Dot Cellular Automata
- Dark Matter and Cosmic Phenomena
- Particle Detector Development and Performance
- Particle accelerators and beam dynamics
- Parallel Computing and Optimization Techniques
- Atomic and Subatomic Physics Research
- Caching and Content Delivery
- Stochastic Gradient Optimization Techniques
- CCD and CMOS Imaging Sensors
- Peer-to-Peer Network Technologies
- Quantum and electron transport phenomena
- High-Energy Particle Collisions Research
- Low-power high-performance VLSI design
- Quantum Chromodynamics and Particle Interactions
- Quantum Mechanics and Applications
- Simulation Techniques and Applications
- Digital Filter Design and Implementation
- Advanced Optical Sensing Technologies
- Modeling and Simulation Systems
- Particle Accelerators and Free-Electron Lasers
Centre National de la Recherche Scientifique
2010-2025
Laboratoire Lorrain de Recherche en Informatique et ses Applications
2021-2025
Université de Lorraine
2025
Quandela (France)
2024
Laboratoire de Recherche en Informatique
2018-2022
Atos (France)
2021-2022
Université de Strasbourg
2016-2022
Transgene (France)
2021-2022
Future Earth
2021-2022
Institut Pluridisciplinaire Hubert Curien
2016-2020
A bstract The OPERA neutrino experiment at the underground Gran Sasso Laboratory has measured velocity of neutrinos from CERN CNGS beam over a baseline about 730 km. measurement is based on data taken by in years 2009, 2010 and 2011. Dedicated upgrades timing system detector, as well high precision geodesy campaign for baseline, allowed reaching comparable systematic statistical accuracies. An arrival time muon with respect to one computed assuming speed light vacuum $ \left( {6.5\pm...
The OPERA neutrino oscillation experiment has been designed to prove the appearance of ντ in a nearly pure νμbeam (CNGS) produced at CERN and detected underground Hall C Gran Sasso Laboratory, 730 km away from source. In OPERA, τ leptons resulting interaction ντare target units called bricks made nuclear emulsion films interleaved with lead plates. contains 150000 such bricks, for total mass 1.25 kton, arranged into walls plastic scintillator strips. detector is split two identical...
The Jiangmen Underground Neutrino Observatory (JUNO) is proposed to determine the neutrino mass hierarchy using an underground liquid scintillator detector. It located 53 km away from both Yangjiang and Taishan Nuclear Power Plants in Guangdong, China. experimental hall, spanning more than 50 meters, under a granite mountain of over 700 m overburden. Within six years running, detection reactor antineutrinos can resolve at confidence level 3-4$\sigma$, oscillation parameters...
The OPERA neutrino detector in the underground Gran Sasso Laboratory (LNGS) has been designed to perform first detection of oscillations direct appearance mode through study $\nu_\mu\rightarrow\nu_\tau$ channel. hybrid apparatus consists an emulsion/lead target complemented by electronic detectors and it is placed high energy long-baseline CERN LNGS beam (CNGS) 730 km away from source. Runs with CNGS neutrinos were successfully carried out 2008 2009. After a brief description beam,...
A new method of momentum measurement charged particles through multiple Coulomb scattering (MCS) in the OPERA lead-emulsion target is presented. It based on precise measurements track angular deviations carried out thanks to very high resolution nuclear emulsions. The algorithm has been tested with Monte Carlo pions. results are found describe within expected uncertainties data obtained from test beams. We also present a comparison muon momenta evaluated MCS those determined by electronic...
The Double Chooz collaboration presents a measurement of the neutrino mixing angle θ 13 using reactor $$ \overline{\nu_{\mathrm{e}}} observed via inverse beta decay reaction in which neutron is captured on hydrogen. This based 462.72 live days data, approximately twice as much data previous such analysis, collected with detector positioned at an average distance 1050 m from two cores. Several novel techniques have been developed to achieve significant reductions backgrounds and systematic...
We tackle the problem of Clifford isometry compilation, i.e, how to synthesize a into an executable quantum circuit. propose simple framework for synthesis that only exploits elementary properties group and one equation symplectic group. highlight versatility our by showing several normal forms literature are natural corollaries. recover state art two-qubit gate depth necessary execution circuit on LNN architecture, concomitantly with another work. also practical algorithms isometries focus...
The OPERA experiment is based on a hybrid technology combining electronic detectors and nuclear emulsions. collected muon-neutrino interactions during the 2008 2009 physics runs of CNGS neutrino beam, produced at CERN with an energy range about 5-35 GeV. A total $5.3 \times 10^{19}$ protons target equivalent luminosity has been analysed detectors: scintillator strips trackers magnetic muon spectrometers equipped resistive plate gas chambers drift tubes, allowing detailed reconstruction...
The OPERA neutrino detector in the underground Gran Sasso Laboratory (LNGS) was designed to perform first detection of oscillations appearance mode through study νμ → ντ oscillations. apparatus consists an emulsion/lead target complemented by electronic detectors and it is placed high energy long-baseline CERN LNGS beam (CNGS) 730 km away from source. Runs with CNGS neutrinos were successfully carried out 2007 2008 fully operational its related facilities for emulsion handling analysis....
A bstract In spring 2012 CERN provided two weeks of a short bunch proton beam dedicated to the neutrino velocity measurement over distance 730 km. The OPERA experiment at underground Gran Sasso Laboratory used an upgraded setup compared 2011 measurements, improving time accuracy. An independent timing system based on Resistive Plate Chambers was exploited providing accuracy ~1 ns. Neutrino and anti-neutrino contributions were separated using information by magnetic spectrometers. new...
In quantum computing the decoherence time of qubits determines computation available, and this is very limited when using current hardware. article, we minimize execution (the depth) for a class circuits referred to as linear reversible circuits, which has many applications in (e.g., stabilizer "CNOT+T" etc.). We propose practical formulation divide-and-conquer algorithm that produces are twice shallow those produced by existing algorithms. improve theoretical upper bound depth worst case...
We present a framework for the synthesis of phase polynomials that addresses both cases full connectivity and partial NISQ architectures. In most cases, our algorithms generate circuits with lower CNOT count depth than state art or have significantly smaller running time similar performances. also provide methods can be applied to in order trade an increase decrease execution time, thereby filling gap between faster ones.
This article describes the setup and performance of near far detectors in Double Chooz experiment. The electron antineutrinos nuclear power plant were measured two identically designed with different average baselines about 400 m 1050 from reactor cores. Over many years data taking neutrino signals extracted interactions goal measuring a fundamental parameter context oscillation, mixing angle {\theta}13. central part was main detector comprising four cylindrical volumes filled organic...
New methods for efficient and unambiguous interconnection between electronic position sensitive detectors target units based on nuclear photographic emulsion films have been developed. The application to the OPERA experiment, that aims at detecting νμ⇌ντ oscillations in CNGS neutrino beam, is reported this paper. In order reduce background due latent tracks collected before installation detector, on-site large-scale treatments of emulsions (''refreshing'') applied. Changeable Sheet (CSd)...
The OPERA detector at the Gran Sasso underground laboratory (LNGS) was used to measure atmospheric muon charge ratio $R_{\mu}=N_{\mu^{+}}/N_{\mu^{-}}$ in TeV energy region. We analyzed 403069 muons corresponding 113.4 days of livetime during 2008 CNGS run. computed separately for single and multiple events order select different regions primary cosmic ray spectrum test R μ dependence on composition. measured values were corrected taking into account charge-misidentification errors. Data have...
The OPERA neutrino experiment in the underground Gran Sasso Laboratory (LNGS) was designed to perform first detection of oscillations direct appearance mode ν µ → τ channel, signature being identification -lepton created its charged current interaction.
A study on cosmic muons has been performed for the two identical near and far neutrino detectors of Double Chooz experiment, placed at $\sim$120 $\sim$300 m.w.e. underground respectively, including corresponding simulations using MUSIC simulation package. This characterization allowed to measure muon flux reaching both be (3.64 $\pm$ 0.04) $\times$ 10$^{-4}$ cm$^{-2}$s$^{-1}$ detector (7.00 0.05) 10$^{-5}$ one. The seasonal modulation signal also studied observing a positive correlation with...
Qubit routing is a key problem for quantum circuit compilation. It consists in rewriting by adding the least possible number of instructions to make compliant with some architecture's connectivity constraints. Usually, this tackled via either SWAP insertion techniques or re-synthesis portions using architecture aware synthesis algorithms. In work, we propose meta-heuristic that couples iterative approach greedy architecture-aware routines. We two new compilation algorithms based on...
We present a search for signatures of neutrino mixing electron anti-neutrinos with additional hypothetical sterile flavors using the Double Chooz experiment. The is based on data from 5 years operation Chooz, including 2 in two-detector configuration. analysis profile likelihood, i.e.\ comparing to model prediction disappearance data-to-data comparison two respective detectors. optimized three active and one neutrino. It sensitive typical mass range $5 \cdot 10^{-3} $ eV$^2 \lesssim \Delta...
Using the Double Chooz detector, designed to measure neutrino mixing angle ${\ensuremath{\theta}}_{13}$, products of ${\ensuremath{\mu}}^{\ensuremath{-}}$ capture on $^{12}\mathrm{C},^{13}\mathrm{C},^{14}\mathrm{N}$, and $^{16}\mathrm{O}$ have been measured. Over a period 489.5 days, $2.3\ifmmode\times\else\texttimes\fi{}{10}^{6}$ stopping cosmic collected, which $1.8\ifmmode\times\else\texttimes\fi{}{10}^{5}$ captured carbon, nitrogen, or oxygen nuclei in inner detector scintillator acrylic...
The OPERA neutrino oscillation experiment is based on the use of Emulsion Cloud Chamber (ECC). In ECC, nuclear emulsion films acting as very high precision tracking detectors are interleaved with lead plates providing a massive target for interactions. We report studies related to effects occurring from contact between and lead. A low radioactivity required in order minimize number background tracks emulsions achieve performance reconstruction events. It was observed that adding other...