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Detecting Fractionalization in Critical Spin Liquids using Color Centers
So Takei, Yaroslav Tserkovnyak
Quantum spin liquids (QSLs) are highly entangled ground states of insulating spin systems, in which magnetic ordering is prevented down to the lowest temperatures due to quantum fl…
Conductivity Enhancement in a Diffusive Fermi Liquid due to Bose-Einstein Condensation of Magnons
Joshua Aftergood, So Takei
We theoretically study the conductivity of a disordered 2D metal when it is coupled to ferromagnetic magnons with a quadratic spectrum and a gap . In the diffusive limit, a comb…
Probing quantum spin liquids in equilibrium using the inverse spin Hall effect
Joshua Aftergood, So Takei
We propose an experimental method utilizing a strongly spin-orbit coupled metal to quantum magnet bilayer that will probe quantum magnets lacking long range magnetic order, e.g., q…
Detecting End-States of Topological Quantum Paramagnets via Spin Hall Noise Spectroscopy
Darshan G. Joshi, Andreas P. Schnyder, So Takei
We theoretically study the equilibrium spin current fluctuations and the corresponding charge noise generated by inverse spin Hall effect (ISHE) in a metal with strong spin-orbit c…
Anomalous criticality near semimetal-to-superfluid quantum phase transition in a two-dimensional Dirac cone model
Benjamin Obert, So Takei, Walter Metzner
We analyze the scaling behavior at and near a quantum critical point separating a semimetallic from a superfluid phase. To this end we compute the renormalization group flow for a…
Nonequilibrium electron spectroscopy of Luttinger liquids
So Takei, Mirco Milletari', Bernd Rosenow
Understanding the effects of nonequilibrium on strongly interacting quantum systems is a challenging problem in condensed matter physics. In dimensions greater than one, interactin…