Results 1 to 10 of about 234,232 (142)

Quantum absorption refrigerator with trapped ions [PDF]

Nature Communications, 2019
Studying quantum heat machines would extend our fundamental understanding of thermodynamics. Here, the authors report on absorption refrigeration within three normal modes of motion of a three-ion chain, studying performances using either thermal or ...
Gleb Maslennikov, Shiqian Ding, Roland Hablützel, Jaren Gan, Alexandre Roulet, Stefan Nimmrichter, Jibo Dai, Valerio Scarani, Dzmitry Matsukevich   +8 more
doaj   +2 more sources

Rapid exchange cooling with trapped ions [PDF]

Nature Communications
The trapped-ion quantum charge-coupled device (QCCD) architecture is a leading candidate for advanced quantum information processing. In current QCCD implementations, imperfect ion transport and anomalous heating can excite ion motion during a ...
Spencer D. Fallek, Vikram S. Sandhu, Ryan A. McGill, John M. Gray, Holly N. Tinkey, Craig R. Clark, Kenton R. Brown   +6 more
doaj   +2 more sources

Integrated-photonics-based systems for polarization-gradient cooling of trapped ions [PDF]

Light: Science & Applications
Trapped ions are a promising modality for quantum systems, with demonstrated utility as the basis for quantum processors and optical clocks. However, traditional trapped-ion systems are implemented using complex free-space optical configurations, whose ...
Sabrina M. Corsetti, Ashton Hattori, Ethan R. Clements, Felix W. Knollmann, Milica Notaros, Reuel Swint, Tal Sneh, Patrick T. Callahan, Gavin N. West, Dave Kharas, Thomas Mahony, Colin D. Bruzewicz, Cheryl Sorace-Agaskar, Robert McConnell, Isaac L. Chuang, John Chiaverini, Jelena Notaros   +16 more
doaj   +2 more sources

Programmable N-Body Interactions with Trapped Ions

PRX Quantum, 2023
Trapped atomic ion qubits or effective spins are a powerful quantum platform for quantum computation and simulation, featuring densely connected and efficiently programmable interactions between the spins.
Or Katz, Marko Cetina, Christopher Monroe   +2 more
doaj   +2 more sources

Temperature estimation of a pair of trapped ions [PDF]

Scientific Reports, 2022
We apply estimation theory to a system formed by two interacting trapped ions. By using the Fisher matrix formalism, we introduce a simple scheme for estimation of the temperature of the longitudinal vibrational modes of the ions.
O. P. de Sá Neto, H. A. S. Costa, G. A. Prataviera, M. C. de Oliveira   +3 more
doaj   +2 more sources

Multi-site integrated optical addressing of trapped ions [PDF]

Nature Communications
One of the most effective ways to advance the performance of quantum computers and quantum sensors is to increase the number of qubits or quantum resources in the system.
Joonhyuk Kwon, William J. Setzer, Michael Gehl, Nicholas Karl, Jay Van Der Wall, Ryan Law, Matthew G. Blain, Daniel Stick, Hayden J. McGuinness   +8 more
doaj   +2 more sources

Verifiable measurement-based quantum random sampling with trapped ions [PDF]

Nature Communications
Quantum computers are now on the brink of outperforming their classical counterparts. One way to demonstrate the advantage of quantum computation is through quantum random sampling performed on quantum computing devices.
Martin Ringbauer, Marcel Hinsche, Thomas Feldker, Paul K. Faehrmann, Juani Bermejo-Vega, Claire L. Edmunds, Lukas Postler, Roman Stricker, Christian D. Marciniak, Michael Meth, Ivan Pogorelov, Rainer Blatt, Philipp Schindler, Jens Eisert, Thomas Monz, Dominik Hangleiter   +15 more
doaj   +3 more sources

Qutrit toric code and parafermions in trapped ions [PDF]

Nature Communications
The development of programmable quantum devices can be measured by the complexity of many-body states that they are able to prepare. Among the most significant are topologically ordered states of matter, which enable robust quantum information storage ...
Mohsin Iqbal, Anasuya Lyons, Chiu Fan Bowen Lo, Nathanan Tantivasadakarn, Joan Dreiling, Cameron Foltz, Thomas M. Gatterman, Dan Gresh, Nathan Hewitt, Craig A. Holliman, Jacob Johansen, Brian Neyenhuis, Yohei Matsuoka, Michael Mills, Steven A. Moses, Peter Siegfried, Ashvin Vishwanath, Ruben Verresen, Henrik Dreyer   +18 more
doaj   +2 more sources

Ion-Based Characterization of Laser Beam Profiles for Quantum Information Processing [PDF]

Entropy
Laser-driven operations are a common approach for engineering one- and two-qubit gates in trapped-ion arrays. Measuring key parameters of these lasers, such as beam sizes, intensities, and polarizations, is central to predicting and optimizing gate ...
Ilyoung Jung, Frank G. Schroer, Philip Richerme   +2 more
doaj   +2 more sources

Quantum information processing with trapped ions

Philosophical Transactions Series A, Mathematical, Physical, and Engineering Sciences, 2003
Experiments directed towards the development of a quantum computer based on trapped atomic ions are described briefly. We discuss the implementation of single qubit operations and gates between qubits.
Murray Barrett, Till Rosenband
exaly   +3 more sources