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Extending Luttinger's theorem to Z 2 fractionalized phases of matter
Luttinger's theorem for Fermi liquids equates the volume enclosed by the Fermi surface in momentum space to the electron filling, independent of the strength and nature of interactions. Motivated by
Superconducting gap anisotropy and quasiparticle interactions: A doping dependent photoemission study
Comparing photoemission measurements on Bi2212 with penetration depth data, we show that a description of the nodal excitations of the d-wave superconducting state in terms of noninteracting
Spin-orbit Coupling in Optical Lattices
In this review, we discuss the physics of spin-orbit coupled quantum gases in optical lattices. After reviewing some relevant experimental techniques, we introduce the basic theoretical model and
Projected wave functions and high temperature superconductivity.
TLDR
The Hubbard model with parameters relevant to cuprates is studied using variational Monte Carlo for projected d-wave states to obtain a superconductor whose order parameter Phi(x) tracks the observed nonmonotonic T(c)(x) and the variational parameter Delta(var) scales with the (pi,0) "hump" and T* seen in photoemission.
Octupolar versus Néel Order in Cubic 5d^{2} Double Perovskites.
TLDR
Time-of-flight neutron spectroscopy and neutron and x-ray diffraction studies of the 5d^{2} double perovskite magnets are shown to be consistent with ferro-octupolar symmetry breaking below T^{*], and are discussed in the context of other 5d doublePerovskites and theories of exotic orders driven by multipolar interactions.
BCS-BEC crossover on the two-dimensional honeycomb lattice.
TLDR
The attractive Hubbard model on the honeycomb lattice exhibits a quantum critical point between a semimetal with massless Dirac fermions and an s-wave superconductor (SC), and the appropriately defined crossover line (in the interaction-density plane) passes through the quantumcritical point at half filling.
High- T c superconductors: A variational theory of the superconducting state
We use a variational approach to gain insight into the strongly correlated $d$-wave superconducting state of the high ${T}_{c}$ cuprates at $T=0$. We show that strong correlations lead to
Spin-orbit coupled j=1/2 iridium moments on the geometrically frustrated fcc lattice
Motivated by experiments on the double perovskites La2ZnIrO6 and La2MgIrO6, we study the magnetism of spin-orbit coupled j=1/2 iridium moments on the three-dimensional, geometrically frustrated,
Dirac Magnons in a Honeycomb Lattice Quantum XY Magnet CoTiO3
The discovery of massless Dirac electrons in graphene and topological Dirac-Weyl materials has prompted a broad search for bosonic analogues of such Dirac particles. Recent experiments have found
Thermal phase transitions of strongly correlated bosons with spin-orbit coupling.
TLDR
A finite temperature generalization of the Gutzwiller method is formulated, and it is shown that thermal fluctuations in the doped Mott insulator drive a two-step melting of the stripe SF, revealing a wide regime of a stripe normal fluid.
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