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A systematic interp...
A systematic interpolatory method for an impurity in a one-dimensional fermionic background
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- Lindgren, Erik J. (author)
- Nordita SU;Stockholm Univ, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden.
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- Barfknecht, Rafael E. (author)
- Univ Fed Rio Grande do Sul, Inst Fis, Av Bento Goncalves 9500, Porto Alegre, RS, Brazil.;Aarhus Univ, Dept Phys & Astron, Ny Munkegade 120, Aarhus, Denmark.
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- Zinner, Nikolaj T. (author)
- Aarhus Univ, Dept Phys & Astron, Ny Munkegade 120, Aarhus, Denmark.
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Nordita SU;Stockholm Univ, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden Univ Fed Rio Grande do Sul, Inst Fis, Av Bento Goncalves 9500, Porto Alegre, RS, Brazil.;Aarhus Univ, Dept Phys & Astron, Ny Munkegade 120, Aarhus, Denmark. (creator_code:org_t)
- Stichting SciPost, 2020
- 2020
- English.
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In: SciPost Physics. - : Stichting SciPost. - 2542-4653. ; 9:1
- Related links:
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https://doi.org/10.2...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- We explore a new numerical method for studying one-dimensional quantum systems in a trapping potential. We focus on the setup of an impurity in a fermionic background, where a single distinguishable particle interacts through a contact potential with a num-ber of identical fermions. We can accurately describe this system, for various particle numbers, different trapping potentials and arbitrary finite repulsion, by constructing a truncated basis containing states at both zero and infinite repulsion. The results are compared with matrix product states methods and with the analytical result for two particles in a harmonic well.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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