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Bulletin of the American Physical Society

Quantum Monte Carlo Study of Composite-Fermions in Quantum Dots

Alev Devrim Güçlü, Gun Sang Jeon, Cyrus J. Umrigar, Jainendra Jain

Published Mar 23, 2005• 0 citations
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A general algorithm toward the solution of the fermion sign problem in finite-temperature quantum Monte Carlo simulations has been formulated for discretized fermion path integrals with nearest-neighbor interactions in the Trotter direction. This multilevel approach systematically implements a simple blocking strategy in a recursive manner to synthesize the sign cancellations among different fermionic paths throughout the whole configuration space. The practical usefulness of the method is demonstrated for interacting electrons in a quantum dot.