695 citations
- Aalto UniversityFI73 papers
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4 papers · 1 filter
Low temperature thermodynamics of charged bosons in a random potential and the specific heat of La_{2-x}Sr_{x}CuO_{4} below Tc
A. S. Alexandrov, R. T. Giles
We propose a simple analytical form of the partition function for charged bosons localised in a random potential and derive the consequent thermodynamics below the superfluid trans…
Impulsive waves in de Sitter and anti-de Sitter space-times generated by null particles with an arbitrary multipole structure
J Podolsky, J B Griffiths
We describe a class of impulsive gravitational waves which propagate either in a de Sitter or an anti-de Sitter background. They are conformal to impulsive waves of Kundt's class.…
Spontaneous DC Current Generation in a Resistively Shunted Semiconductor Superlattice Driven by a TeraHertz Field
Kirill N. Alekseev, Ethan H. Cannon, Jonathan C. McKinney +2
We study a resistively shunted semiconductor superlattice subject to a high-frequency electric field. Using a balance equation approach that incorporates the influence of the elect…
Gravitational waves with distinct wavefronts
G A Alekseev, J B Griffiths
Exact solutions of Einstein's vacuum equations are considered which describe gravitational waves with distinct wavefronts. A family of such solutions presented recently in which th…