774 citations
- Helsinki Institute of PhysicsFI5 papers
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58 papers · 1 filter
Linear AC Response of Diffusive SNS Junctions
Pauli Virtanen, F. Sebastián Bergeret, Juan Carlos Cuevas +1
We explore the behavior of the ac admittance of superconductor-normal metal-superconductor (SNS) junctions as the phase difference of the order parameters between the superconducto…
Momentum Distribution and Contact of the Unitary Fermi gas
Joaquín E. Drut, Timo A. Lähde, Timour Ten
We calculate the momentum distribution n(k) of the Unitary Fermi Gas using Quantum Monte Carlo calculations at finite temperature T/ε_F as well as in the ground state. At large mom…
Flat band in the core of topological defects: bulk-vortex correspondence in topological superfluids with Fermi points
G. E. Volovik
We discuss the dispersionless spectrum with zero energy in the linear topological defects - vortices. The flat band emerges inside the vortex living in the bulk medium containing t…
Dimensional crossover in topological matter: Evolution of the multiple Dirac point in the layered system to the flat band on the surface
Tero T. Heikkilä, G. E. Volovik
We consider the dimensional crossover in the topological matter, which involves the transformation of different types of topologically protected zeroes in the fermionic spectrum. I…
Bounds from a Card Trick
Travis Gagie
We describe a new variation of a mathematical card trick, whose analysis leads to new lower bounds for data compression and estimating the entropy of Markov sources.
New Algorithms on Wavelet Trees and Applications to Information Retrieval
Travis Gagie, Gonzalo Navarro, Simon J. Puglisi
Wavelet trees are widely used in the representation of sequences, permutations, text collections, binary relations, discrete points, and other succinct data structures. We show, ho…