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Simulating QCD at nonzero baryon density to all orders in the hopping parameter expansion
Gert Aarts 
,
Erhard Seiler,
Dénes Sexty,
Ion-Olimpiu Stamatescu
,
Erhard Seiler,
Dénes Sexty,
Ion-Olimpiu Stamatescu
Physical Review D, Volume: 90, Issue: 11
Swansea University Author:
Gert Aarts
-
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DOI (Published version): 10.1103/PhysRevD.90.114505
Abstract
Progress in simulating QCD at nonzero baryon density requires, amongst others, substantial numerical effort. Here we propose two different expansions to all orders in the hopping parameter, preserving the full Yang-Mills action, which are much cheaper to simulate. We carry out simulations using comp...
| Published in: | Physical Review D |
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| ISSN: | 1550-7998 1550-2368 |
| Published: |
2014
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa20491 |
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| Abstract: |
Progress in simulating QCD at nonzero baryon density requires, amongst others, substantial numerical effort. Here we propose two different expansions to all orders in the hopping parameter, preserving the full Yang-Mills action, which are much cheaper to simulate. We carry out simulations using complex Langevin dynamics, both in the hopping expansions and in the full theory, for two flavours of Wilson fermions, and agreement is seen at sufficiently high order in the expansion. These results provide support for the use of complex Langevin dynamics to study QCD at nonzero density, both in the full and the expanded theory, and for the convergence of the latter. |
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| College: |
Faculty of Science and Engineering |
| Issue: |
11 |