A Novel Ultrafast Pulse Platform for Quantum Technology. Research area 6.2 Quantum Information Science.
Abstract
The overall objective of this proposal is to develop the theory of ultrafast laser pulses to control quantum states in trapped ion systems on timescales faster than decohering noise processes. Specific objectives include the study of ultrafast pulses to achieve fast cooling, to produce Schršdinger Cat states of motion in a new frequency regime of interactions, to realize fast entanglement of two or more trapped ions, and to generate strong three-body interactions. The techniques proposed are alternatives to slower techniques currently realized and, if successful, will allow not only for fast control of ion systems but also will potentially simplify trapped ion based quantum information systems by reducing the requirements for initial ground state cooling. The techniques proposed for exploration also have the potential to extend to other quantum information systems. The overall proposed research will pursue theory to improve the accuracy of the unitary transformations necessary for quantum information processing in trapped ion systems. Specifically, the approach will focus on applying quantum operators quickly and with high precision which ultimately decreases the sensitivity to environmental noise and improves the fidelity of operations. Previous work has determined that implementing a frequency comb relying on ultrafast laser beams is one of the best methods for implementing these fast operations. Optimal coherent control and dynamic decoupling techniques will be incorporated in the implementation of these frequency combs. A close collaboration will be pursued with the trapped ion group at the University of Maryland (PI: Christopher Monroe) to implement and test the theoretical developments. The experimental results will be used to further refine the theory. The related experimental work will be supported in a separate project. Theory and experiment will collaborate to explore producing fast concatenated cat states, ultra-fast cooling techniques, two-qubit entangling gates, and many-body interactions.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jan 12, 2017
- Source ID
- W911NF1510250
Entities
People
- Alex Retzker
Organizations
- Army Contracting Command
- Hebrew University of Jerusalem
- National Security Agency