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7 papers · 1 filter
Cross-relaxation and phonon bottleneck effects on magnetization dynamics in LiYF4:Ho3+
S. Bertaina, B. Barbara, R. Giraud +5
Frequency and dc magnetic field dependences of dynamic susceptibility in diluted paramagnets LiYF:Ho have been measured at liquid helium temperatures in the ac and dc ma…
Practical scheme for a light-induced gauge field in an atomic Bose gas
Kenneth J. Günter, Marc Cheneau, Tarik Yefsah +2
We propose a scheme to generate an Abelian gauge field in an atomic gas using two crossed laser beams. If the internal atomic state follows adiabatically the eigenstates of the ato…
Kramers degeneracy in a magnetic field and Zeeman spin-orbit coupling in antiferromagnetic conductors
Revaz Ramazashvili
In this article, I study magnetic response of electron wavefunctions in a commensurate collinear antiferromagnet. I show that, at a special set of momenta, hidden anti-unitary symm…
Flux expulsion and greedy bosons: frustrated magnets at large N
O. Tchernyshyov, R. Moessner, S. L. Sondhi
We investigate the Sp(N) mean-field theory for frustrated quantum magnets. First, we establish some general properties of its solutions; in particular, for small spin we propose si…
Quantitative expression of the spin gap via bosonization for a dimerized spin-1/2 chain
Edmond Orignac
Using results on the mass gap in the sine-Gordon model combined with the exact amplitudes in the bosonized representation of the Heisenberg spin-1/2 chain and one-loop renormalizat…
Superconducting fluctuations in the Luther-Emery liquid
Edmond Orignac, Didier Poilblanc
The single-particle superconducting Green's functions of a Luther-Emery liquid is computed by bosonization techniques. Using a formulation introduced by Poilblanc and Scalapino [Ph…