Quantum Simulation: From Spin Models to Gauge-Gravity Correspondence
Abstract
Title:Quantum Simulation -- From Spin Models to Gauge-Gravity CorrespondenceObjective:This is an OSD funded pilot project that accompanies and extends an Vanevar Bush Fellowship awarded to the PI. The project will focus on the gauge-gravitycorrespondence and use a controllable quantum many-body system close to a critical point to experimentally test the gauge-gravity duality and related concepts.Approach:The dynamics of a large quantum system containing more than 50 qubits will be investigated in various critical regimes, bounds on the maximum speed of quantum scrambling will be determined that are relevant to the scrambling of information by black holes, and the relation between scrambling, quantum scars, and gravitational theories will be investigated.SOW:This work at the interface of high-energy physics, gravity, and quantum many-body physics will be performed in collaboration between the groups of Mikhail Lukin and Markus Greiner at Harvard, and the group of Vladan Vuletic at MIT, and will also include theorists in the fields of high-energy physics and many-body theory. The experimental part of the work will be performed on an existing apparatus that can deterministically prepare reconfigurable arrays of individuallytrapped and detected cold atoms. The atoms are coupled to each other via strong, coherent interactions induced by excitation to atomic Rydberg states. In this system, the collaboration has recently realized a programmable Ising-type quantum spin model with tunable interactions for a system size of up to 51 qubits. The setup features fast control compared to the sub-microsecondcharacteristic evolution time of the system, so that controlled quench can be performed, and the subsequent dynamical evolution observed with single-qubit resolution. The work is divided into following four thrusts:Thrust 1: Experimental realization and study of quantum critical points of different universality classesThrust 2: Entanglement and central charge near quantum phase transitionsThrust 3: Experimental studies of quantum scrambling, quantum scars and gravity-gauge dualityThrust 4: Technical developments: scaling up of the system to more qubits, two dimensions, and better programmability
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Oct 17, 2018
- Source ID
- N000141812899
Entities
People
- Mikhail Lukin
Organizations
- Office of Naval Research
- President and Fellows of Harvard College
- United States Navy