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58 papers · 1 filter
Camelback-shaped band reconciles heavy electron behavior with weak electronic Coulomb correlations in superconducting TlNi2Se2
N. Xu, C. E. Matt, P. Richard +16
Using high-resolution photoemission spectroscopy and first-principles calculations, we characterize superconducting TlNiSe as a material with weak electronic Coulomb correl…
Doppler Spectroscopy of an Ytterbium Bose-Einstein Condensate on the Clock Transition
A. Dareau, M. Scholl, Q. Beaufils +3
We describe Doppler spectroscopy of Bose-Einstein condensates of ytterbium atoms using a narrow optical transition. We address the optical clock transition around 578 nm between th…
The Quark Condensate in Multi-Flavour QCD - Planar Equivalence Confronting Lattice Simulations
Adi Armoni, Mikhail Shifman, Graham Shore +1
Planar equivalence between the large limits of Super Yang-Mills (SYM) theory and a variant of QCD with fermions in the antisymmetric representation is a powerful t…
Band Structure and Terahertz Optical Conductivity of Transition Metal Oxides: Theory and Application to CaRuO
Hung T. Dang, Jernej Mravlje, Antoine Georges +1
Density functional plus dynamical mean field calculations are used to show that in transition metal oxides, rotational and tilting (GdFeO-type) distortions of the ideal cubic p…
Observation of a localized flat-band state in a photonic Lieb lattice
Sebabrata Mukherjee, Alexander Spracklen, Debaditya Choudhury +4
We show experimentally how a non-diffracting state can be excited in a photonic Lieb lattice. This lattice supports three energy bands, including a perfectly flat middle band, whic…
The third virial coefficient of a two-component unitary Fermi gas across an Efimov-effect threshold
Chao Gao, Shimpei Endo, Yvan Castin
We consider a mixture of two single-spin-state fermions with an interaction of negligible range and infinite -wave scattering length. By varying the mass ratio across $α_c\s…