Browsing Physics (Scholarly Publications) by Subject "Theoretical Physics"
Now showing items 116 of 16

The ElectroOptical Performance of Silver Nanowire Networks
(2019)Networks of metallic nanowires have the potential to meet the needs of nextgeneration device technologies that require flexible transparent conductors. At present, there does not exist a first principles model capable of ... 
Impurity invisibility in graphene: Symmetry guidelines for the design of efficient sensors
(2016)Renowned for its sensitivity to detect the presence of numerous substances, graphene is an excellent chemical sensor. Unfortunately, which general features a dopant must have in order to enter the list of substances ... 
MottHubbard transition and spinliquid state on the pyrochlore lattice
(2016)The pyrochlore lattice involves cornersharing tetrahedra and the resulting geometric frustration is believed to suppress any antiferromagnetic order for Mott insulators on this structure. There are nevertheless shortrange ... 
NONCOLLINEAR MAGNETIC ORDER IN THE DOUBLE PEROVSKITES: DOUBLE EXCHANGE ON A GEOMETRICALLY FRUSTRATED LATTICE
(2013)Double perovskites (DPs) of the form A2BB′ O6 usually involve a transition metal ion, B, with a large magnetic moment, and a nonmagnetic ion B′. While many DPs are ferromagnetic, studies on the underlying model reveal the ... 
Optimizing performance of quantum operations with nonMarkovian decoherence: the tortoise or the hare?
(2024)The interaction between a quantum system and its environment limits our ability to control it and perform quantum operations on it. We present an efficient method to find optimal controls for quantum systems coupled to ... 
Pauli paramagnetism of cubic V3Al, CrVTiAl, and related 18electron Heusler compounds with a group13 element
(2021)Calculations suggest that ordered Heusler alloys with 18 valance electrons could exhibit a variety of unusual electronic and magnetic states that are absent in the constituent elements. They include magnetic semiconductors, ... 
Quantum heat statistics with timeevolving matrix product operators
(2021)We present a numerically exact method to compute the full counting statistics of heat transfer in nonMarkovian open quantum systems, which is based on the timeevolving matrix product operator algorithm. This approach is ... 
Spectroscopic signatures of the Mott transition on the anisotropic triangular lattice
(2014)We use a new Monte Carlo method to study the Mott transition on the anisotropictriangularlattice Hubbard model. Our real space approach accurately treats the emergence of nontrivial magnetic correlation in this frustrated ... 
Synchronization in disordered oscillator lattices: Nonequilibrium phase transition for drivendissipative bosons
(2021)We show that lattices of phase oscillators with random natural frequencies undergo a transition from a desynchronized to a synchronized state for dimensions d<4. The oscillators are described by a generalization of the ... 
There are many ways to spin a photon: Halfquantization of a total optical angular momentum
(2016)The angular momentum of light plays an important role in many areas, from optical trapping to quantum information. In the usual threedimensional setting, the angular momentum quantum numbers of the photon are integers, ... 
Visualizing the Mott transition
(2012)Correlated electronic systems involve strong shortrange repulsion. At integer filling, the primary effect of correlation is the emergence of an insulating state where band theory predicts a metal. Understanding the ... 
Weyl points and exceptional rings with polaritons in bulk semiconductors
(2020)Weyl points are the simplest topologically protected degeneracy in a threedimensional dispersion relation. The realization of Weyl semimetals in photonic crystals has allowed these singularities and their consequences to ...