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Spontaneous Magnetic Flux and Quantum Noise in a Doubly Connected Mesoscopic SND Junction
Alexandre M Zagoskin, Masaki Oshikawa
We consider spontaneous magnetic flux in a doubly connected s-wave/normal metal/ d-wave superconductor (SND) Josephson junction. The flux magnitude is not quantized and is determin…
Theory of the field-induced gap in antiferromagnetic chains
Masaki Oshikawa, Ian Affleck
In a recent neutron-scattering experiment on the quasi-one-dimensional antiferromagnet Cu Benzoate, a gap was induced by an applied magnetic field. We argue that the primar…
Impurity in a Luttinger liquid away from half-filling: a numerical study
Shaojin Qin, Michele Fabrizio, Lu Yu +2
Conformal field theory gives quite detailed predictions for the low energy spectrum and scaling exponents of a massless Luttinger liquid at generic filling in the presence of an im…
Non-perturbative approach to Luttinger's theorem in one dimension
Masanori Yamanaka, Masaki Oshikawa, Ian Affleck
The Lieb-Schultz-Mattis theorem for spin chains is generalized to a wide range of models of interacting electrons and localized spins in one-dimensional lattice. The existence of a…