Journal
SCIPOST PHYSICS
Volume 10, Issue 3, Pages -Publisher
SCIPOST FOUNDATION
DOI: 10.21468/SciPostPhys.10.3.065
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Funding
- ERC Starting Grant [679278]
- Swedish Research Council [2015-05333]
- European Research Council (ERC) [679278] Funding Source: European Research Council (ERC)
- Swedish Research Council [2015-05333] Funding Source: Swedish Research Council
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A new set of conserved charges has been found in classical J (T) over bar - deformed CFTs, resolving a contradiction and reconciling the inconsistency between symmetry generators and the spectrum.
It has been recently shown that classical J (T) over bar - deformed CFTs possess an infinite-dimensional Witt-Kac-Moody symmetry, generated by certain field-dependent coordinate and gauge transformations. On a cylinder, however, the equal spacing of the descendants' energies predicted by such a symmetry algebra is inconsistent with the known finite-size spectrum of J (T) over bar - deformed CFTs. Also, the associated quantum symmetry generators do not have a proper action on the Hilbert space. In this article, we resolve this tension by finding a new set of (classical) conserved charges, whose action is consistent with semiclassical quantization, and which are related to the previous symmetry generators by a type of energy-dependent spectral flow. The previous inconsistency between the algebra and the spectrum is resolved because the energy operator does not belong to the spectrally flowed sector.
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