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QQ-system and non-l...
QQ-system and non-linear integral equations for scattering amplitudes at strong coupling
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- Fioravanti, Davide (författare)
- Univ Bologna, Sez INFN Bologna, Dipartimento Fis & Astron, Via Irnerio 46, I-40126 Bologna, Italy.
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- Rossi, Marco (författare)
- Univ Calabria, Dipartimento Fis, I-87036 Arcavacata Di Rende, Cosenza, Italy.;INFN, Grp Collegato Cosenza, I-87036 Arcavacata Di Rende, Cosenza, Italy.
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- Shu, Hongfei (författare)
- Stockholms universitet,Nordiska institutet för teoretisk fysik (Nordita),Stockholm Univ, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden.;Nordita SU
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Univ Bologna, Sez INFN Bologna, Dipartimento Fis & Astron, Via Irnerio 46, I-40126 Bologna, Italy Univ Calabria, Dipartimento Fis, I-87036 Arcavacata Di Rende, Cosenza, Italy.;INFN, Grp Collegato Cosenza, I-87036 Arcavacata Di Rende, Cosenza, Italy. (creator_code:org_t)
- Springer Nature, 2020
- 2020
- Engelska.
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Ingår i: Journal of High Energy Physics (JHEP). - : Springer Nature. - 1126-6708 .- 1029-8479. ; :12
- Relaterad länk:
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https://doi.org/10.1...
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visa fler...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- We provide the two fundamental sets of functional relations which describe the strong coupling limit in AdS(3) of scattering amplitudes in N = 4 SYM dual to Wilson loops (possibly extended by a non-zero twist l): the basic QQ-system and the derived TQ-system. We use the TQ relations and the knowledge of the main properties of the Q-function (eigenvalue of some Q-operator) to write the Bethe Ansatz equations, viz. a set of ('complex') non-linear-integral equations, whose solutions give exact values to the strong coupling amplitudes/Wilson loops. Moreover, they have some advantages with respect to the ('real') non-linear-integral equations of Thermodynamic Bethe Ansatz and still reproduce, both analytically and numerically, the findings coming from the latter. In any case, these new functional and integral equations give a larger perspective on the topic also applicable to the realm of N = 2 SYM BPS spectra.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- AdS-CFT Correspondence
- Bethe Ansatz
- Integrable Field Theories
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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