3 papers
physics.comp-ph2019
Reducing the complexity of finite-temperature auxiliary-field quantum Monte Carlo
C. N. Gilbreth, S. Jensen, Y. Alhassid
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 i…
cond-mat.quant-gas2019
The contact in the unitary Fermi gas across the superfluid phase transition
S. Jensen, C. N. Gilbreth, Y. Alhassid
A quantity known as the contact plays a fundamental role in quantum many-body systems with short-range interactions. The determination of the temperature dependence of the contact…
cond-mat.quant-gas2018
The pseudogap regime in the unitary Fermi gas
S. Jensen, C. N. Gilbreth, Y. Alhassid
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 sig…