Pseudogap regime of the unitary Fermi gas with lattice auxiliary-field quantum Monte Carlo in the continuum limit

Autor: Jensen, S., Gilbreth, C. N., Alhassid, Y.

The unitary Fermi gas (UFG) is a strongly correlated system of two-species (spin-1/2) fermions with a short-range attractive interaction modeled by a contact interaction and has attracted much interest across different disciplines. The UFG is conside

Externí odkaz: http://arxiv.org/abs/2408.16676

A Race Track Trapped-Ion Quantum Processor

Autor: Moses, S. A., Baldwin, C. H., Allman, M. S., Ancona, R., Ascarrunz, L., Barnes, C., Bartolotta, J., Bjork, B., Blanchard, P., Bohn, M., Bohnet, J. G., Brown, N. C., Burdick, N. Q., Burton, W. C., Campbell, S. L., Campora III, J. P., Carron, C., Chambers, J., Chan, J. W., Chen, Y. H., Chernoguzov, A., Chertkov, E., Colina, J., Curtis, J. P., Daniel, R., DeCross, M., Deen, D., Delaney, C., Dreiling, J. M., Ertsgaard, C. T., Esposito, J., Estey, B., Fabrikant, M., Figgatt, C., Foltz, C., Foss-Feig, M., Francois, D., Gaebler, J. P., Gatterman, T. M., Gilbreth, C. N., Giles, J., Glynn, E., Hall, A., Hankin, A. M., Hansen, A., Hayes, D., Higashi, B., Hoffman, I. M., Horning, B., Hout, J. J., Jacobs, R., Johansen, J., Jones, L., Karcz, J., Klein, T., Lauria, P., Lee, P., Liefer, D., Lytle, C., Lu, S. T., Lucchetti, D., Malm, A., Matheny, M., Mathewson, B., Mayer, K., Miller, D. B., Mills, M., Neyenhuis, B., Nugent, L., Olson, S., Parks, J., Price, G. N., Price, Z., Pugh, M., Ransford, A., Reed, A. P., Roman, C., Rowe, M., Ryan-Anderson, C., Sanders, S., Sedlacek, J., Shevchuk, P., Siegfried, P., Skripka, T., Spaun, B., Sprenkle, R. T., Stutz, R. P., Swallows, M., Tobey, R. I., Tran, A., Tran, T., Vogt, E., Volin, C., Walker, J., Zolot, A. M., Pino, J. M.

Publikováno v: Phys. Rev. X 13, 041052 (2023)

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 track. The new system successfully incorporates several technologies cr

Externí odkaz: http://arxiv.org/abs/2305.03828

Reducing the complexity of finite-temperature auxiliary-field quantum Monte Carlo

Autor: Gilbreth, C. N., Jensen, S., Alhassid, Y.

The auxiliary-field quantum Monte Carlo (AFMC) method is a powerful and widely used technique for ground-state and finite-temperature simulations of quantum many-body systems. We introduce several algorithmic improvements for finite-temperature AFMC

Externí odkaz: http://arxiv.org/abs/1907.10596

The pseudogap regime in the unitary Fermi gas

Autor: Jensen, S., Gilbreth, C. N., Alhassid, Y.

We discuss the pseudogap regime in the cold atomic unitary Fermi gas, with a particular emphasis on the auxiliary-field quantum Monte Carlo (AFMC) approach. We discuss possible signatures of the pseudogap, review experimental results, and survey anal

Externí odkaz: http://arxiv.org/abs/1807.03913

Nuclear deformation in the configuration-interaction shell model

Autor: Alhassid, Y., Bertsch, G. F., Gilbreth, C. N., Mustonen, M. T.

We review a method that we recently introduced to calculate the finite-temperature distribution of the axial quadrupole operator in the laboratory frame using the auxiliary-field Monte Carlo technique in the framework of the configuration-interaction

Externí odkaz: http://arxiv.org/abs/1801.06175