Supersymmetric quantum mechanics on the lattice: III. Simulations and algorithms

Baumgartner, David; Wenger, Urs (2015). Supersymmetric quantum mechanics on the lattice: III. Simulations and algorithms. Nuclear physics. B, 899, pp. 375-394. North Holland 10.1016/j.nuclphysb.2015.07.020

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In the fermion loop formulation the contributions to the partition function naturally separate into topological equivalence classes with a definite sign. This separation forms the basis for an efficient fermion simulation algorithm using a fluctuating open fermion string. It guarantees sufficient tunnelling between the topological sectors, and hence provides a solution to the fermion sign problem affecting systems with broken supersymmetry. Moreover, the algorithm shows no critical slowing down even in the massless limit and can hence handle the massless Goldstino mode emerging in the supersymmetry broken phase. In this paper – the third in a series of three – we present the details of the simulation algorithm and demonstrate its efficiency by means of a few examples.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Institute of Theoretical Physics

UniBE Contributor:

Baumgartner, David and Wenger, Urs

Subjects:

500 Science > 530 Physics

ISSN:

0550-3213

Publisher:

North Holland

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

31 Aug 2015 16:44

Last Modified:

31 Aug 2015 16:44

Publisher DOI:

10.1016/j.nuclphysb.2015.07.020

BORIS DOI:

10.7892/boris.71421

URI:

https://boris.unibe.ch/id/eprint/71421

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