We compute the single-interval Rényi entropy (replica partition function) for free fermions in 1+1d at finite temperature and finite spatial size by two methods: (i) using the higher-genus partition function on the replica ...
In arXiv: 1706.09426 we conjectured and provided evidence for an identity between Siegel Theta-constants for special Riemann surfaces of genus n and products of Jacobi theta-functions. This arises by comparing two different ...