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Qubit-photon corner states in all dimensions
Adrian Feiguin, Juan Jose Garcia-Ripoll, Alejandro Gonzalez-Tudela
A single quantum emitter coupled to a one-dimensional photon field can perfectly trap a photon when placed close to a mirror. This occurs when the interference between the emitted…
Quantum liquid with strong orbital fluctuations: the case of a pyroxene family
A. Feiguin, A. M. Tsvelik, Weiguo Yin +1
We discuss quasi one-dimensional magnetic Mott insulators of the pyroxene family where spin and orbital degrees of freedom remain tightly bound. We analyze their excitation spectru…
A machine learning approach to dynamical properties of quantum many-body systems
Douglas Hendry, Adrian E. Feiguin
Variational representations of quantum states abound and have successfully been used to guess ground-state properties of quantum many-body systems. Some are based on partial physic…
Spinon Confinement and a Sharp Longitudinal Mode in YbPtPb in Magnetic Fields
W. J. Gannon, I. A. Zaliznyak, L. S. Wu +7
The fundamental excitations in an antiferromagnetic chain of spins-1/2 are spinons, de-confined fractional quasiparticles that when combined in pairs, form a triplet excitation con…
Many-body effects in porphyrin-like transition metal complexes embedded in graphene
Andrew Allerdt, Hasnain Hafiz, Bernardo Barbiellini +2
We introduce a new computational method to study porphyrin-like transition metal complexes, bridging density functional theory and exact many-body techniques, such as the density m…
Time and momentum-resolved tunneling spectroscopy of pump-driven non-thermal excitations in Mott insulators
Krissia Zawadzki, Adrian E. Feiguin
We present a computational technique to calculate time and momentum resolved non-equilibrium spectral density of correlated systems using a tunneling approach akin scanning tunneli…