380 citations · 3.4k across the 72 of their papers we have counts for
6 papers · 1 filter
Bosonic Working Media in a Frustrated Rhombi Chain: Otto and Stirling Cycles from Flat Bands, Caging, and Flux Control
Francisco J. Peña, Rafael García-Zamora, Gabriele De Chiara +5
We demonstrate that flat-band engineering provides a direct route to control and optimize the thermodynamic performance of quantum heat engines. We consider noninteracting bosons o…
Magnetic phases of spin-1 lattice gases with random interactions
Kenneth D. McAlpine, Simone Paganelli, Sergio Ciuchi +2
A spin-1 atomic gas in an optical lattice, in the unit-filling Mott Insulator (MI) phase and in the presence of disordered spin-dependent interaction, is considered. In this regime…
Measuring work and heat in ultracold quantum gases
G. De Chiara, A. J. Roncaglia, J. P. Paz
We propose a feasible experimental scheme to direct measure heat and work in cold atomic setups. The method is based on a recent proposal which shows that work is a positive operat…
Characterization of Bose-Hubbard Models with Quantum Non-demolition Measurements
B. Rogers, M. Paternostro, J. F. Sherson +1
We propose a scheme for the detection of quantum phase transitions in the 1D Bose-Hubbard (BH) and 1D Extended Bose-Hubbard (EBH) models, using the non-demolition measurement techn…
The bilinear-biquadratic spin-1 chain undergoing quadratic Zeeman effect
G. De Chiara, M. Lewenstein, A. Sanpera
The Heisenberg model for spin-1 bosons in one dimension presents many different quantum phases including the famous topological Haldane phase. Here we study the robustness of such…
The quantum ground state of self-organized atomic crystals in optical resonators
Sonia Fernández-Vidal, Gabriele De Chiara, Jonas Larson +1
Cold atoms, driven by a laser and simultaneously coupled to the quantum field of an optical resonator, can self-organize in periodic structures. These structures are supported by t…