Holographic Dual of PT Symmetric BCFT

• URL: http://arxiv.org/abs/2606.18629v1
• Date: Wed, 17 Jun 2026 02:55:14 GMT
• Title: Holographic Dual of PT Symmetric BCFT
• Abstract summary: We present a holographic dual of a two dimensional conformal field theory with non-hermitian but Parity-Time (PT) symmetric boundary conditions.<n>We find that as we increase the strength of the non-hermitian PT symmetric interactions, the system experiences a spontaneous PT symmetry breaking.
• Score: 3.2730252899424745
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We present a holographic dual of a two dimensional conformal field theory with non-hermitian but Parity-Time (PT) symmetric boundary conditions, by applying the AdS/BCFT duality and by introducing an imaginary valued scalar field localized on an end-of-the-world brane. We find that as we increase the strength of the non-hermitian PT symmetric interactions, the system experiences a spontaneous PT symmetry breaking. We also consider its Wick rotated setup as a new quantum quenched state and show that its growth of entanglement entropy can be larger than the standard results obtained from standard Cardy states.

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