11 citations · 11 across the 1 of their papers we have counts for
2 papers
quant-ph2020★ 11 cited
Impurity dephasing in a Bose-Hubbard model
Fabio Caleffi, Massimo Capone, Inés de Vega +1
We study the dynamics of a two-level impurity embedded in a two-dimensional Bose-Hubbard model at zero temperature from an open quantum system perspective. Results for the decohere…
cond-mat.quant-gas2019
Quantum fluctuations beyond the Gutzwiller approximation in the Bose-Hubbard model
Fabio Caleffi, Massimo Capone, Chiara Menotti +2
We develop a quantum many-body theory of the Bose-Hubbard model based on the canonical quantization of the action derived from a Gutzwiller mean-field ansatz. Our theory is a syste…