Engineering pathways to state preparation in quantum systems
Abstract
The proposal focuses on engineering pathways for fast quantum state preparation in both isolated and open systems. The problem recently became a forefront of research in many different areas of science. For example, in systems like cold atoms or trapped ions such protocols are essential to avoid heating while tuning the parameters of the Hamiltonian to a nontrivial interacting state. In quantum computers-simulators such protocols are required to efficiently implement adiabatic protocols without need to go to very long, usually inaccessible, times. In thermodynamics such protocols can be used to design small quantum heat engines operating near maximum efficiency and at the same time yielding high power. In quantum chemistry such pathways can be used to design fast chemical reactions. This proposal will utilize so called short cut to adiabaticity (STA) protocols to address these questions. Applying and extending the formalism recently developed in P.I.’s group, the proposed work will combine variational methods and Floquet engineering technique to design efficient, local and experimentally implementable protocols for fast state preparation. The proposal will naturally split into designing such protocols for isolated systems, where one can control the global Hamiltonian and for open systems, where only a subset of degrees of freedom is available. P.I. will also use recently developed by him mapping between quantum states and classical Gibbs ensembles to understand similarities and differences between such protocols in quantum and classical systems. It is anticipated that the developed protocols will find applications in many different experimental platforms including cold atoms, trapped ions, superconducting qubits, NV-centers, various existing quantum simulators including commercial ones, and eventually will be applied in more complex materials.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Mar 07, 2023
- Source ID
- FA95502110342
Entities
People
- Anatoli Polkovnikov
Organizations
- Air Force Office of Scientific Research
- Boston University
- United States Air Force