Results 11 to 20 of about 234,381 (288)
Ion trapping and cathode bombardment by trapped ions in dc photoguns [PDF]
Physical Review Special Topics. Accelerators and Beams, 2007 Ion back bombardment is believed to be a main cause of degradation of quantum efficiency of photocathodes in fixed-voltage photoguns. Ions produced in collisions of the electron beam with residual gas in the cathode-anode gap are accelerated towards the ...
E. Pozdeyev
doaj +3 more sources
Subspace benchmarking high-fidelity entangling operations with trapped ions
Physical Review Research, 2020 We present a new and simplified two-qubit randomized benchmarking procedure that operates only in the symmetric subspace of a pair of qubits and is well suited for benchmarking trapped-ion systems.
C. H. Baldwin +4 more
doaj +2 more sources
Microfabricated ion traps [PDF]
Contemporary Physics, 2011 Ion traps offer the opportunity to study fundamental quantum systems with high level of accuracy highly decoupled from the environment. Individual atomic ions can be controlled and manipulated with electric fields, cooled to the ground state of motion with laser cooling and coherently manipulated using optical and microwave radiation.
Hughes, Marcus D. +3 more
openaire +2 more sources
Simulations of ion trapping in a micrometer-sized cylindrical ion trap [PDF]
Journal of the American Society for Mass Spectrometry, 2006 We have performed detailed SIMION simulations of ion behavior in micrometer-sized cylindrical ion traps (r0 = 1 microm). Simulations examined the effects of ion and neutral temperature, the pressure and nature of cooling gas, ion mass, trap voltage and frequency, space-charge, fabrication defects, and other parameters on the ability of micrometer-sized
Austin, Daniel E. +2 more
openaire +2 more sources
Design of an Integrated Bell-State Analyzer on a Thin-Film Lithium Niobate Platform
IEEE Photonics Journal, 2022 Trapped ions are excellent candidates for quantum computing and quantum networks because of their long coherence times, ability to generate entangled photons as well as high fidelity single- and two-qubit gates. To scale up trapped ion quantum computing,
Uday Saha, Edo Waks
doaj +1 more source
Optical trapping of an ion [PDF]
Nature Photonics, 2010 For several decades, ions have been trapped by radio frequency (RF) and neutral particles by optical fields. We implement the experimental proof-of-principle for trapping an ion in an optical dipole trap. While loading, initialization and final detection are performed in a RF trap, in between, this RF trap is completely disabled and substituted by the ...
Schneider, Christian M. +3 more
openaire +4 more sources
Thermometry in a Multipole Ion Trap
Applied Sciences, 2020 We present a characterization of the ions’ translational energy distribution in a multipole ion trap. A linear mapping between the energy distribution of the trapped ions onto the ions’ time-of-flight (TOF) to a detector is demonstrated.
Markus Nötzold +5 more
doaj +1 more source
Modular cryostat for ion trapping with surface-electrode ion traps [PDF]
Review of Scientific Instruments, 2013 We present a simple cryostat purpose built for use with surface-electrode ion traps, designed around an affordable, large cooling power commercial pulse tube refrigerator. A modular vacuum enclosure with a single vacuum space facilitates interior access and enables rapid turnaround and flexibility for future modifications.
Vittorini, Grahame +4 more
openaire +3 more sources
A high-fidelity quantum matter-link between ion-trap microchip modules
Nature Communications, 2023 A possible route to scalability of trapped-ion-based quantum computing platforms is to connect multiple modules where ions can be shuttled across different registers.
M. Akhtar +9 more
doaj +1 more source
Enhanced Parameter Estimation with Periodically Driven Quantum Probe
Entropy, 2021 I propose a quantum metrology protocol for measuring frequencies and weak forces based on a periodic modulating quantum Jahn–Teller system composed of a single spin and two bosonic modes.
Peter A. Ivanov
doaj +1 more source