A5084652325- Atomic and Molecular Physics
- Nuclear physics research studies
- Quantum Information and Cryptography
- Cold Atom Physics and Bose-Einstein Condensates
- Astronomical and nuclear sciences
- Mass Spectrometry Techniques and Applications
- Nuclear Physics and Applications
- Quantum Mechanics and Applications
- Quantum Computing Algorithms and Architecture
- Quantum optics and atomic interactions
- Advanced Chemical Physics Studies
- Atomic and Subatomic Physics Research
- Radioactive Decay and Measurement Techniques
- Advanced Frequency and Time Standards
- Spectroscopy and Quantum Chemical Studies
- Advanced Fiber Laser Technologies
- Advanced Thermodynamics and Statistical Mechanics
- Quantum, superfluid, helium dynamics
- Enzyme Structure and Function
- Metal complexes synthesis and properties
- Mechanical and Optical Resonators
- Particle accelerators and beam dynamics
- Geochemistry and Geologic Mapping
- Electron and X-Ray Spectroscopy Techniques
- Quantum many-body systems
Centre for Quantum Technologies
2013-2024
Institute of Materials Research and Engineering
2023-2024
Agency for Science, Technology and Research
2023-2024
National University of Singapore
2013-2024
Material (Belgium)
2024
Centre National de la Recherche Scientifique
2020-2022
Sorbonne Université
2020-2022
Nanyang Technological University
2020-2022
Université Côte d'Azur
2020
Indian Association for the Cultivation of Science
1992-2014
The masses of six neutron-deficient rare holmium and thulium isotopes close to the proton drip line were determined with SHIPTRAP Penning trap mass spectrometer. For first time proton-unbound 144,145Ho 147,148Tm directly measured. separation energies derived from measured values compared predictions formulas. new are used determine location for more accurately.Received 26 October 2006DOI:https://doi.org/10.1103/PhysRevLett.100.012501©2008 American Physical Society
ISOLTRAP is a Penning trap mass spectrometer for high-precision measurements on short-lived nuclides installed at the on-line isotope separator ISOLDE CERN. The masses of close to 300 radionuclides have been determined up now. applicability spectrometry exotic nuclei has extended considerably by improving and developing this double over past two decades. accurate determination nuclear binding energies far from stability includes that are produced rates less than 100 ions/s with half-lives...
It is desirable to observe synchronization of quantum systems in the regime, defined by low number excitations and a highly nonclassical steady state self-sustained oscillator. Several existing proposals observing regime suffer from fact that noise statistics overwhelm this regime. Here, we resolve issue driving oscillator with squeezing Hamiltonian instead harmonic drive analyze system classical We demonstrate strong entrainment possible for small values squeezing, states are nonclassical....
Photon correlations are investigated for a single laser-excited ion trapped in front of mirror. Varying the relative distance between and mirror, photon correlation statistics can be tuned smoothly from an antibunching minimum to bunching-like maximum. Our analysis concerns non-Markovian regime ion-mirror interaction reveals field establishment half-cavity interferometer.
This roadmap bundles fast developing topics in experimental optical quantum sciences, addressing current challenges as well potential advances future research. We have focused on three main areas: assisted high precision measurements, information/simulation, and gases. Quantum measurements are discussed the first sections, which review clocks, atom interferometry, magnetometry. These fields already successfully utilized various applied areas. will discuss approaches to extend this impact...
We have investigated the autodetachment of electrons from rovibrationally hot SF${}_{6}{}^{\ensuremath{-}}$ anions using a cryogenic ion-beam trap. Extremely low residual gas densities ${10}^{4}$ cm${}^{\ensuremath{-}3}$ provided undisturbed observation neutralization rates due to vibrational (VAD) over almost five orders magnitude and times up 100 ms. successfully explain our experimental decay curves statistical rate theory combined with electron attachment data frequencies calculated for...
Mass measurements with a relative precision of better than 1.5 x 10(-8) were performed on 22Mg and its reaction partners 21Na 22Na the ISOLTRAP Penning trap mass spectrometer at CERN, yielding excesses D(22Mg)=-399.92(27) keV, D(21Na)=-2184.71(21) D(22Na)=-5181.56(16) keV. The importance these results is twofold. First, comparative half-life (Ft value) has been obtained for superallowed beta decay to further test conserved-vector-current hypothesis. Second, resonance energy proton capture...
Quantum computers can provide solutions to classically intractable problems under specific and adequate conditions. However, current devices have only limited computational resources, an effort is made develop useful quantum algorithms these circumstances. This work experimentally demonstrates that a single-qubit device host universal classifier. The processor used in this based on ion traps, providing highly accurate control small systems. algorithm chosen the re-uploading scheme, which...
The 3 ϫ 0.5 km gabbro-hosted Precambrian Baula Complex, in Orissa, India, comprises a steeply dipping pyroxenite unit tectonic contact to the east with peridotite that contains three chromitite layers and becomes pyroxene-rich eastward toward top.The ultramafic formations are intruded by Bangur Gabbro, top of which entered shear zone, forming breccia zone.The breccia, 1 40 m thick almost continuous along strike for 2000 m, shows extensive vertical lateral variations.It is made up blocks...
This work reports the functioning of a single atom energy-conversion device, operating either as quantum engine or refrigerator, coupled to load. The "working fluid" is comprised two optical levels ion, and load one vibrational mode same ion cooled down regime. energy scales these modes differ by 9 orders magnitude. We realize cyclic transfers between working fluid load, increasing decreasing population mode. achieved albeit interaction leads significant redistribution correlations them....
The branching fractions from the excited state $6P_{1/2}$ of singly charged barium ion has been measured with a precision $0.05%$ in an trap experiment. This measurement along known value upper life-time allowed determination dipole matrix elements for transitions $P-S$ and $P-D$ to below one percent level. Therefore, first time it is now possible compare many body calculations these at level which significance any parity non-conservation experiment on ion. Moreover, are most significant...
A new protocol for measuring the branching fraction of hydrogenic atoms with only statistically limited uncertainty is proposed and demonstrated decay P3/2 level barium ion, precision below 0.5%. Heavy like ion are test beds fundamental physics such as atomic parity violation they also hold key to understanding nucleo-synthesis in stars. To draw definitive conclusion about possible beyond standard model by it necessary measure dipole transition probabilities low-lying excited states a better...