350 citations · 825 across the 18 of their papers we have counts for
19 papers
Quantum error correction well below the color code threshold
Ali Lavasani, Adam P. Reed, Joan M. Dreiling +20
Quantum error correction enables scalable fault-tolerant quantum computation by suppressing logical errors exponentially with code distance once physical error rates fall below a c…
Computing with many encoded logical qubits beyond break-even
Shival Dasu, Matthew DeCross, Andrew Y. Guo +42
High-rate quantum error correcting (QEC) codes encode many logical qubits in a given number of physical qubits, making them promising candidates for quantum computation. Implementi…
Barium Autoionization for Efficient Ion Trap Loading
Zachary J. Wall, Justin D. Piel, Samuel R. Vizvary +7
We report a theoretical and experimental investigation of autoionizing resonances from the manifold in neutral barium for efficient loading of ion traps.…
Helios: A 98-qubit trapped-ion quantum computer
Anthony Ransford, M. S. Allman, Jake Arkinstall +183
We report on Quantinuum Helios, a 98-qubit trapped-ion quantum processor based on the quantum charge-coupled device (QCCD) architecture. Helios features Ba hyperfine…
Realization of a Quantum Streaming Algorithm on Long-lived Trapped-ion Qubits
Pradeep Niroula, Shouvanik Chakrabarti, Steven Kordonowy +30
Large classical datasets are often processed in the streaming model, with data arriving one item at a time. In this model, quantum algorithms have been shown to offer an unconditio…
Certified randomness amplification by dynamically probing remote random quantum states
Minzhao Liu, Pradeep Niroula, Matthew DeCross +49
Cryptography depends on truly unpredictable numbers, but physical sources emit biased or correlated bits. Quantum mechanics enables the amplification of imperfect randomness into n…
Superconducting pairing correlations on a trapped-ion quantum computer
Etienne Granet, Sheng-Hsuan Lin, Kevin Hémery +31
The Fermi-Hubbard model is the starting point for the simulation of many strongly correlated materials, including high-temperature superconductors, whose modelling is a key motivat…
Measuring the Loschmidt amplitude for finite-energy properties of the Fermi-Hubbard model on an ion-trap quantum computer
Kévin Hémery, Khaldoon Ghanem, Eleanor Crane +16
Calculating the equilibrium properties of condensed matter systems is one of the promising applications of near-term quantum computing. Recently, hybrid quantum-classical time-seri…
A Race Track Trapped-Ion Quantum Processor
S. A. Moses, C. H. Baldwin, M. S. Allman +93
We describe and benchmark a new quantum charge-coupled device (QCCD) trapped-ion quantum computer based on a linear trap with periodic boundary conditions, which resembles a race t…
Non-Abelian Topological Order and Anyons on a Trapped-Ion Processor
Mohsin Iqbal, Nathanan Tantivasadakarn, Ruben Verresen +15
Non-Abelian topological order (TO) is a coveted state of matter with remarkable properties, including quasiparticles that can remember the sequence in which they are exchanged. The…
High fidelity state preparation and measurement of ion hyperfine qubits with I > 1/2
Fangzhao Alex An, Anthony Ransford, Andrew Schaffer +4
We present a method for achieving high fidelity state preparation and measurement (SPAM) using trapped ion hyperfine qubits with nuclear spins higher than . The ground sta…
Blueprint for trapped ion quantum computing with metastable states
D. T. C. Allcock, W. C. Campbell, J. Chiaverini +7
Quantum computers, much like their classical counterparts, will likely benefit from flexible qubit encodings that can be matched to different tasks. For trapped ion quantum process…
Weak dissipation for high fidelity qubit state preparation and measurement
Anthony Ransford, Conrad Roman, Thomas Dellaert +2
Highly state-selective, weakly dissipative population transfer is used to irreversibly move the population of one ground state qubit level of an atomic ion to an effectively stable…
Hyperfine structure of : toward resolving the nuclear octupole moment puzzle
Di Xiao, Jiguang Li, Wesley C. Campbell +5
Hyperfine structure (HFS) of atomic energy levels arises due to interactions of atomic electrons with a hierarchy of nuclear multipole moments, including magnetic dipole, electric…
Coherent control for qubit state readout
Conrad Roman, Anthony Ransford, Michael Ip +1
Short pulses from mode-locked lasers can produce background-free atomic fluorescence by allowing temporal separation of the prompt incidental scatter from the subsequent atomic emi…
Phonon lasing from optical frequency comb illumination of a trapped ion
Michael Ip, Anthony Ransford, Andrew M. Jayich +3
An atomic transition can be addressed by a single tooth of an optical frequency comb if the excited state lifetime () is significantly longer than the pulse repetition period ($…
Displacement operators: the classical face of their quantum phase
Amar C. Vutha, Eliot A. Bohr, Anthony Ransford +2
In quantum mechanics, the operator representing the displacement of a system in position or momentum is always accompanied by a path-dependent phase factor. In particular, two non-…
Achieving translational symmetry in trapped cold ion rings
Hao-Kun Li, Erik Urban, Crystal Noel +8
Spontaneous symmetry breaking is a universal concept throughout science. For instance, the Landau-Ginzburg paradigm of translational symmetry breaking underlies the classification…
Probing surface electric field noise with a single ion
N. Daniilidis, S. Gerber, G. Bolloten +5
We report room-temperature electric field noise measurements combined with in-situ surface characterization and cleaning of a microfabricated ion trap. We used a single-ion electri…