331 citations · 3k across the 69 of their papers we have counts for
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Ground state energy of the two-dimensional weakly interacting Bose gas: First correction beyond Bogoliubov theory
Christophe Mora, Yvan Castin
We consider the grand potential of a two-dimensional weakly interacting homogeneous Bose gas at zero temperature. Building on a number-conserving Bogoliubov method for a lattic…
Quantum melting of a crystal of dipolar bosons
Christophe Mora, Olivier Parcollet, Xavier Waintal
We investigate the behaviour of dipolar bosons in two dimensions. We describe the large density crystalline limit analytically while we use quantum Monte-Carlo to study the melting…
Variational wave functions, ground state and their overlap
Christophe Mora, Xavier Waintal
An intrinsic measure of the quality of a variational wave function is given by its overlap with the ground state of the system. We derive a general formula to compute this overlap…
Extension of Bogoliubov theory to quasi-condensates
Christophe Mora, Yvan Castin
We present an extension of the well-known Bogoliubov theory to treat low dimensional degenerate Bose gases in the limit of weak interactions and low density fluctuations. We use a…