3 citations · 5 across the 2 of their papers we have counts for
4 papers · 1 filter
Quantum entanglement in a pure state of strongly correlated quantum impurity systems
Yunori Nishikawa, Tomoki Yoshioka
We consider quantum entanglement in strongly correlated quantum impurity systems for states manifesting interesting properties such as multi-level Kondo effect and dual nature betw…
Magnetic field induced quantum criticality and the Luttinger sum rule
Y. Nishikawa, O. J. Curtin, A. C. Hewson +1
We show that when there is a sudden transition from a small to a large Fermi surface at a field-induced quantum critical point, similar to what may have been observed in some heavy…
Fermi Liquids and the Luttinger Integral
O. J. Curtin, Y. Nishikawa, A. C. Hewson +1
The Luttinger Theorem, which relates the electron density to the volume of the Fermi surface in an itinerant electron system, is taken to be one of the essential features of a Ferm…
Conditions for observing emergent SU(4) symmetry in a double quantum dot
Yunori Nishikawa, Oliver J. Curtin, Alex C. Hewson +2
We analyze conditions for the observation of a low energy SU(4) fixed point in capacitively coupled quantum dots. One problem, due to dots with different couplings to their baths,…