325 citations · 1.1k across the 12 of their papers we have counts for
12 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…
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,…
Geometry and non-adiabatic response in quantum and classical systems
Michael Kolodrubetz, Dries Sels, Pankaj Mehta +1
In these lecture notes, partly based on a course taught at the Karpacz Winter School in March 2014, we explore the close connections between non-adiabatic response of a system with…
Pitchfork Bifurcation and Zharov Splitting in Nonlinear Mid-infrared Photothermal Spectroscopy in a liquid crystal using a Quantum Cascade Laser
Alket Mertiri, Hatice Altug, M. K. Hong +4
We report on the mid-infrared nonlinear photothermal spectrum of the neat liquid crystal 4-Octyl-4'-Cyanobiphenyl (8CB) using a tunable Quantum Cascade Laser (QCL). The nonequilibr…
Efficiency bounds for nonequilibrium heat engines
Pankaj Mehta, Anatoli Polkovnikov
We analyze the efficiency of thermal engines (either quantum or classical) working with a single heat reservoir like atmosphere. The engine first gets an energy intake, which can b…