title: Universal relaxational dynamics of gapped one-dimensional models in the quantum sine-Gordon universality class.
abstract: A semiclassical approach to the low-temperature real-time dynamics of generic one-dimensional, gapped models in the sine-Gordon model universality class is developed. Asymptotically exact universal results for correlation functions are obtained in the temperature regime T << Delta, where Delta is the energy gap.
authors.affiliation: Department of Theoretical Physics, Tata Institute of Fundamental Research, Mumbai 400005, India.
authors.forename: Kedar
authors.initials: K
authors.lastname: Damle
authors.forename: Subir
authors.initials: S
authors.lastname: Sachdev