par Amoretti, Andrea 
;Areán, Daniel;Goutéraux, B.;Musso, Daniele
Référence The Journal of high energy physics, 2020, 1, 58
Publication Publié, 2020-01
;Areán, Daniel;Goutéraux, B.;Musso, Daniele Référence The Journal of high energy physics, 2020, 1, 58
Publication Publié, 2020-01
Article révisé par les pairs
| Résumé : | We study a holographic model where translations are both spontaneously and explicitly broken, leading to the presence of (pseudo)-phonons in the spectrum. The weak explicit breaking is due to two independent mechanisms: a small source for the condensate itself and additional linearly space-dependent marginal operators. The low energy dynamics of the model is described by Wigner crystal hydrodynamics. In absence of a source for the condensate, the phonons remain gapless, but momentum is relaxed. Turning on a source for the condensate damps and pins the phonons. Finally, we verify that the universal relation between the phonon damping rate, mass and diffusivity reported in [1] continues to hold in this model for weak enough explicit breaking. |
