Symmetries & locality of TTbar-deformed CFTs

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• Ruben Monten, CERN
• Thursday 20 November 2025, 13:00-14:00
• Potter room.

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TTbar-deformed theories provide a unique perspective on both QFT , beyond the Wilsonian paradigm, and on holography, beyond the standard asymptotic boundary conditions. To understand how these theories are organized, I will discuss their locality structure through the infinite-dimensional field-dependent symmetries, which they inherit from the conformal group. Analyzing the symmetry generators both semi-classically and as quantum operators, we find that these theories are quasi-local and contain free parameters, revealing potential ambiguities in the Hamiltonian formulation. I will discuss some of the implications for the holographic interpretation and illustrate with an example where everything can be calculated explicitly at the semi-classical level, thus providing a litmus test for different proposals in the literature.

This talk is part of the Quantum Fields and Strings Seminars series.

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