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Laser cooling trapped-ion crystal modes beyond the Lamb-Dicke regime

Autor: Bartolotta, John P., Estey, Brian, Foss-Feig, Michael, Hayes, David, Gilbreth, Christopher N.

Laser cooling methods for trapped ions are most commonly studied at low energies, i.e., in the Lamb-Dicke regime. However, ions in experiments are often excited to higher energies for which the Lamb-Dicke approximation breaks down. Here we construct

Externí odkaz: http://arxiv.org/abs/2411.18818

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Robustness of near-thermal dynamics on digital quantum computers

Autor: Chertkov, Eli, Chen, Yi-Hsiang, Lubasch, Michael, Hayes, David, Foss-Feig, Michael

Understanding the impact of gate errors on quantum circuits is crucial to determining the potential applications of quantum computers, especially in the absence of large-scale error-corrected hardware. We put forward analytical arguments, corroborate

Externí odkaz: http://arxiv.org/abs/2410.10794

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Experiments with the 4D Surface Code on a QCCD Quantum Computer

Autor: Berthusen, Noah, Dreiling, Joan, Foltz, Cameron, Gaebler, John P., Gatterman, Thomas M., Gresh, Dan, Hewitt, Nathan, Mills, Michael, Moses, Steven A., Neyenhuis, Brian, Siegfried, Peter, Hayes, David

Single-shot quantum error correction has the potential to speed up quantum computations by removing the need for multiple rounds of syndrome extraction in order to be fault-tolerant. Using Quantinuum's H2 trapped-ion quantum computer, we implement th

Externí odkaz: http://arxiv.org/abs/2408.08865

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The computational power of random quantum circuits in arbitrary geometries

Autor: DeCross, Matthew, Haghshenas, Reza, Liu, Minzhao, Rinaldi, Enrico, Gray, Johnnie, Alexeev, Yuri, Baldwin, Charles H., Bartolotta, John P., Bohn, Matthew, Chertkov, Eli, Cline, Julia, Colina, Jonhas, DelVento, Davide, Dreiling, Joan M., Foltz, Cameron, Gaebler, John P., Gatterman, Thomas M., Gilbreth, Christopher N., Giles, Joshua, Gresh, Dan, Hall, Alex, Hankin, Aaron, Hansen, Azure, Hewitt, Nathan, Hoffman, Ian, Holliman, Craig, Hutson, Ross B., Jacobs, Trent, Johansen, Jacob, Lee, Patricia J., Lehman, Elliot, Lucchetti, Dominic, Lykov, Danylo, Madjarov, Ivaylo S., Mathewson, Brian, Mayer, Karl, Mills, Michael, Niroula, Pradeep, Pino, Juan M., Roman, Conrad, Schecter, Michael, Siegfried, Peter E., Tiemann, Bruce G., Volin, Curtis, Walker, James, Shaydulin, Ruslan, Pistoia, Marco, Moses, Steven. A., Hayes, David, Neyenhuis, Brian, Stutz, Russell P., Foss-Feig, Michael

Empirical evidence for a gap between the computational powers of classical and quantum computers has been provided by experiments that sample the output distributions of two-dimensional quantum circuits. Many attempts to close this gap have utilized

Externí odkaz: http://arxiv.org/abs/2406.02501

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Entangling four logical qubits beyond break-even in a nonlocal code

Autor: Hong, Yifan, Durso-Sabina, Elijah, Hayes, David, Lucas, Andrew

Quantum error correction protects logical quantum information against environmental decoherence by encoding logical qubits into entangled states of physical qubits. One of the most important near-term challenges in building a scalable quantum compute

Externí odkaz: http://arxiv.org/abs/2406.02666

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Benchmarking logical three-qubit quantum Fourier transform encoded in the Steane code on a trapped-ion quantum computer

We implement logically encoded three-qubit circuits for the quantum Fourier transform (QFT), using the [[7,1,3]] Steane code, and benchmark the circuits on the Quantinuum H2-1 trapped-ion quantum computer. The circuits require multiple logical two-qu

Externí odkaz: http://arxiv.org/abs/2404.08616

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