Bootstrapping boundary-localized interactions II. minimal models at the boundary

We provide evidence for the existence of non-trivial unitary conformal boundary conditions for a three-dimensional free scalar field, which can be obtained via a coupling to the m’th unitary diagonal minimal model. For large m we can demonstrate the existence of the fixed point perturbati...

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Main Authors: Behan, C, Di Pietro, L, Lauria, E, van Rees, BC
Format: Journal article
Language:English
Published: Springer 2022
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author Behan, C
Di Pietro, L
Lauria, E
van Rees, BC
author_facet Behan, C
Di Pietro, L
Lauria, E
van Rees, BC
author_sort Behan, C
collection OXFORD
description We provide evidence for the existence of non-trivial unitary conformal boundary conditions for a three-dimensional free scalar field, which can be obtained via a coupling to the m’th unitary diagonal minimal model. For large m we can demonstrate the existence of the fixed point perturbatively, and for smaller values we use the numerical conformal bootstrap to obtain a sharp kink that smoothly matches onto the perturbative predictions. The wider numerical analysis also yields universal bounds for the spectrum of any other boundary condition for the free scalar field. A second kink in these bounds hints at a second class of non-standard boundary conditions, as yet unidentified.
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spelling oxford-uuid:e0efb7ae-30d5-400b-82e5-68f6276bcba02022-05-25T14:03:47ZBootstrapping boundary-localized interactions II. minimal models at the boundaryJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:e0efb7ae-30d5-400b-82e5-68f6276bcba0EnglishSymplectic ElementsSpringer2022Behan, CDi Pietro, LLauria, Evan Rees, BCWe provide evidence for the existence of non-trivial unitary conformal boundary conditions for a three-dimensional free scalar field, which can be obtained via a coupling to the m’th unitary diagonal minimal model. For large m we can demonstrate the existence of the fixed point perturbatively, and for smaller values we use the numerical conformal bootstrap to obtain a sharp kink that smoothly matches onto the perturbative predictions. The wider numerical analysis also yields universal bounds for the spectrum of any other boundary condition for the free scalar field. A second kink in these bounds hints at a second class of non-standard boundary conditions, as yet unidentified.
spellingShingle Behan, C
Di Pietro, L
Lauria, E
van Rees, BC
Bootstrapping boundary-localized interactions II. minimal models at the boundary
title Bootstrapping boundary-localized interactions II. minimal models at the boundary
title_full Bootstrapping boundary-localized interactions II. minimal models at the boundary
title_fullStr Bootstrapping boundary-localized interactions II. minimal models at the boundary
title_full_unstemmed Bootstrapping boundary-localized interactions II. minimal models at the boundary
title_short Bootstrapping boundary-localized interactions II. minimal models at the boundary
title_sort bootstrapping boundary localized interactions ii minimal models at the boundary
work_keys_str_mv AT behanc bootstrappingboundarylocalizedinteractionsiiminimalmodelsattheboundary
AT dipietrol bootstrappingboundarylocalizedinteractionsiiminimalmodelsattheboundary
AT lauriae bootstrappingboundarylocalizedinteractionsiiminimalmodelsattheboundary
AT vanreesbc bootstrappingboundarylocalizedinteractionsiiminimalmodelsattheboundary