932 citations · 1.6k across the 8 of their papers we have counts for
8 papers
Glassy Phase of Optimal Quantum Control
Alexandre G. R. Day, Marin Bukov, Phillip Weinberg +2
We study the problem of preparing a quantum many-body system from an initial to a target state by optimizing the fidelity over the family of bang-bang protocols. We present compell…
A high-bias, low-variance introduction to Machine Learning for physicists
Pankaj Mehta, Marin Bukov, Ching-Hao Wang +4
Machine Learning (ML) is one of the most exciting and dynamic areas of modern research and application. The purpose of this review is to provide an introduction to the core concept…
Broken symmetry in a two-qubit quantum control landscape
Marin Bukov, Alexandre G. R. Day, Phillip Weinberg +3
We analyze the physics of optimal protocols to prepare a target state with high fidelity in a symmetrically coupled two-qubit system. By varying the protocol duration, we find a di…
Reinforcement Learning in Different Phases of Quantum Control
Marin Bukov, Alexandre G. R. Day, Dries Sels +3
The ability to prepare a physical system in a desired quantum state is central to many areas of physics such as nuclear magnetic resonance, cold atoms, and quantum computing. Yet,…
Bosonic Many-body Theory of Quantum Spin Ice
Zhihao Hao, Alexandre G. R. Day, M. J. P. Gingras
We carry out an analytical study of quantum spin ice, a U quantum spin liquid close to the classical spin ice solution for an effective spin model with anisotropic excha…
Phase Transition and Thermal Order-by-Disorder in the Pyrochlore Quantum Antiferromagnet Er2Ti2O7: a High-Temperature Series Expansion Study
J. Oitmaa, R. R. P. Singh, A. G. R. Day +2
Several rare earth magnetic pyrochlore materials are well modeled by a spin-1/2 quantum Hamiltonian with anisotropic exchange parameters Js. For the Er2Ti2O7 material, the Js were…
Resilience of d-wave superconductivity to nearest-neighbor repulsion
D. Sénéchal, A. Day, V. Bouliane +1
Many theoretical approaches find d-wave superconductivity in the prototypical one-band Hubbard model for high-temperature superconductors. At strong-coupling (U > W, where U is the…
Is the Yb2Ti2O7 pyrochlore a quantum spin ice?
R. Applegate, N. R. Hayre, R. R. P. Singh +3
We use numerical linked cluster (NLC) expansions to compute the specific heat, C(T), and entropy, S(T), of a quantum spin ice model of Yb2Ti2O7 using anisotropic exchange interacti…