One-loop spectroscopy of semiclassically quantized strings: bosonic sector
Artikel i vetenskaplig tidskrift, 2015

We make a further step in the analytically exact quantization of spinning string states in semiclassical approximation, by evaluating the exact one-loop partition function for a class of two-spin string solutions for which quadratic fluctuations form a non-trivial system of coupled modes. This is the case of a folded string in the SU(2) sector, in the limit described by a quantum Landau-Lifshitz model. The same applies to the full bosonic sector of fluctuations over the folded spinning string in AdS(5) with an angular momentum J in S-5. Fluctuations are governed by a special class of fourth-order differential operators, with coefficients being meromorphic functions on the torus, which we are able to solve exactly.


string theory

special differential operators


V. Forini

Humboldt-Universität zu Berlin

Valentina Giangreco Marotta Puletti

Chalmers, Fundamental fysik

M. Pawellek

Humboldt-Universität zu Berlin

E. Vescovi

Humboldt-Universität zu Berlin

Journal of Physics A: Mathematical and Theoretical

1751-8113 (ISSN) 1751-8121 (eISSN)

Vol. 48 Art. no. 085401-