Title: Thermal correlators, factorization and semiclassics

Abstract: Thermal correlation functions in CFT’s at finite temperature are extremely interesting objects. For instance, on one hand, they can be used to study aspects of the structure of the CFT, such as OPE coefficients. On the other hand, for holographic …

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Title: Qubit Regularization: Large Charge CFTs and Asymptotic Freedom

Abstract: Qubit regularization is the idea to regulate a QFT on a lattice with a finite dimensional Hilbert space per site. This idea is important for studying QFTs on a quantum computer. It is well know that such an approach is viable for a variety …

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Title: Comments on Large Charge and Holography

Abstract: I will discuss three topics on the large charge limit of SCFT in four dimensions. First, I will discuss what we can learn from holography about general structures of the large-charge expansion of SCFT with higher-rank gauge groups. Second, I will briefly discuss …

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Title: The OPE meets semiclassics

Abstract: Most of the predictions of the large charge expansion concern the spectrum of the theory and the expectation value of light operators between two heavy charged states in CFTs with internal symmetries. In this talk I will show that also the correlation functions of three large …

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Title: How different is more?

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Title: Spontaneously Broken Boosts in CFTs

Abstract: Conformal Field Theories (CFTs) have rich dynamics in heavy states. We describe the constraints due to spontaneously broken boost and dilatation symmetries in such states. The spontaneously broken boost symmetries require the existence of new low-lying primaries …

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Title: Resurgence of the large-charge expansion

Abstract: In this talk I will discuss the d=3 Wilson-Fisher O(N) CFT in a large-charge sector, where also N is taken to be large. The large-charge expansion of critical exponents of the model turns out to be an asymptotic series with double factorial growth. Resurgent …

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Title: Large Charge Sector of 3d Parity-Violating CFTs

Abstract: I will discuss 3d CFTs that become superfluids at finite density. When parity is not a symmetry, the Goldstone EFT contains a single 1-derivative term with quantized coefficient. This term forces the superfluid ground state to have vortices on the sphere, …

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Title: Untangling scaling dimensions of fixed charge operators in a CFT

Abstract: I will start with a brief pedagogic review of the semiclassical method for determining the scaling dimensions of fixed-charge operators in conformal field theory (CFT) with global symmetries and then introduce a general strategy to …

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