Abstract
We derive an integral equation describing N two-dimensional bosons with zero-range interactions and solve it for the ground state energy B N by applying a stochastic diffusion Monte Carlo scheme for up to 26 particles. We confirm and go beyond the scaling B N ∝ 8.567N predicted by Hammer and Son (2004 Phys. Rev. Lett. 93 250408) in the large-N limit.
Original language | English |
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Article number | 023045 |
Journal | New Journal of Physics |
Volume | 20 |
Issue number | 2 |
DOIs | |
State | Published - Feb 2018 |
Bibliographical note
Publisher Copyright:© 2018 The Author(s). Published by IOP Publishing Ltd on behalf of Deutsche Physikalische Gesellschaft.
Keywords
- Bose gas
- two-dimensional systems
- zero-range interaction