Tuning the quantumness of simple Bose systems and the evolution of the phase diagram
ORAL
Abstract
By means of first-principle Quantum Monte Carlo simulations, we study systems of Bose particles interacting via the Lennard-Jones interaction, which constitute a broad class of condensed matter systems that ranges from crystals to normal fluids to superfluids and gases. The interplay between particle interactions on the one hand, and quantum indistinguishability and delocalization on the other, is characterized by a single quantumness parameter. We show how the topology of the phase diagram evolves from the familiar case of He-4 as the dynamics of the particles become more (and less) quantum. We compare our predictions with available results from mean-field theory, and we discuss possible experimental realizations of the phases and physical regimes predicted here, including hypothetical muonic matter.
*This work was supported by the Natural Sciences and Engineering Research Council of Canada, a Simons Investigator grant (DTS) and the Simons Collaboration on Ultra-Quantum Matter, which is a grant from the Simons Foundation (651440, DTS). Computing support of Compute Canada and of the Flatiron Institute are gratefully acknowledged. The Flatiron Institute is a division of the Simons Foundation.
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Presenters
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Youssef Kora
- Department of Physics, University of Alberta