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The Quantum von Neumann Architecture and the Future of Quantum Computing with Superconducting Circuits
Matteo Mariantoni - Institute for Quantum Computing (IQC)
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Absence of Pauling's Residual Entropy in Dy2Ti2O
Jan Kycia - University of Waterloo
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Tensor Networks: an Overview
Lukasz Cincio - Los Alamos National Laboratory
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Diluted Magnetism in Iridates: Studies of Rh-doped Sr2Ir2O4
Pat Clancy - University of Toronto
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Reaching Experimentally Quantum Criticality: A Playground to Explore Novel Correlated Quantum States of Matter
Radu Coldea - University of Oxford
Realizing experimentally continuous phase transitions in the electronic ground state of materials near zero temperature as a function of tuning some external parameter (magnetic field, pressure etc.) offers a unique opportunity to probe the extreme regime (near the transition point) where strong… -
Spin-1/2 Heisenberg Antiferromagnet on the Kagome Lattice: a Z2 Spin Liquid with Fermionic Spinons
Zhihao Hao - University of Waterloo
Motivated by recent numerical and experimental studies of the spin-1/2 Heisenberg antiferromagnet on kagome, we formulate a many-body model for fermionic spinons, which are just uncoupled spins. The spinons interact with an emergent U(1) gauge field and experience strong short-range attraction in… -
The Quantum von Neumann Architecture and the Future of Quantum Computing with Superconducting Circuits
Matteo Mariantoni - Institute for Quantum Computing (IQC)
Superconducting quantum circuits have made significant advances over the past decade, allowing more complex and integrated circuits that perform with good fidelity. We have recently implemented a machine comprising seven quantum channels, with three superconducting resonators, two phase qubits, and… -
Absence of Pauling's Residual Entropy in Dy2Ti2O
Jan Kycia - University of Waterloo
The discovery of the spin-ice phase in Dy2Ti2O7 numbers among the most significant findings in magnetic materials in over a decade. The spin-ice model is based on an elegant analogy to Pauling’s model of geometrical frustration in water ice, and predicts the same residual entropy, as confirmed by… -
New Neutron Scattering Results on the Enigmatic Ground State of the Pyrochlore Magnet Tb2Ti2O7
Katharina Fristsch - McMaster University
The ground state of the candidate spin liquid pyrochlore magnet Tb2Ti2O7 (TTO) has been long debated. Despite theoretical expectations of magnetic order below ~1K based on classical Ising-like Tb3+ spins, earlier muSR and neutron scattering experiments showed no long range order down to 50mK. This… -
Tensor Networks: an Overview
Lukasz Cincio - Los Alamos National Laboratory
Tensor network algorithms provide highly competitive tools for analyzing ground state properties of quantum lattice models in one and two spatial dimensions. The most notable examples involve matrix product states, projected entangled pair states and multiscale entanglement renormalization ansatz… -
Higgs Boson in Condensed Matter: From Polaron to Topological Insulator
In this talk I will briefly review the polaron physics, which has helped theorists to conceive the BCS theory of conventional superconductors as well as experimentalists to discover high temperature superconductors in the cuprates. Specifically I will talk about how charge carriers obtain their… -
Diluted Magnetism in Iridates: Studies of Rh-doped Sr2Ir2O4
Pat Clancy - University of Toronto
The physics of iridium-based 5d transition metal oxides has attracted significant interest due to the potential for exotic magnetic and electronic ground states driven by strong spin-orbit coupling effects. Among the most extensively studied iridates is the layered perovskite Sr2IrO4, which was…