Generation of highly entangled states of light based on quantum optical frequency comb
Abstract
In this project, we generate highly entangled states of light for scalable quantum information technologies. Light has various advantages as a carrier of quantum information, e.g. fast transmission speed and high quantum state fidelity, but it has limitations on scalability due to a low generation rate and small degrees of freedom for quantum states. We will solve those limitations by two methods. One is to employ deterministic generation of quantum light (squeezed vacuum), and the other is to exploit large degrees of freedom associated with frequency modes of optical frequency comb. To integrate the two methods, we will engineer a quantum process in an optical parametric oscillator that is compatible with optical frequency comb. The generated light from the device is a complexly entangled quantum state in multiple frequencies (central wavelength: 800 nm), so called quantum optical frequency comb: it exhibits multipartite quantum correlations (or entanglement) among many frequency modes. As quantum correlations are a key quantum resource for quantum technologies, the quantum optical frequency comb will have broad applications for quantum technologies with scalability, such as multiple-player quantum communication and measurement-based quantum computing.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Nov 16, 2022
- Source ID
- FA23862114020
Entities
People
- Youngsik Ra
Organizations
- Air Force Office of Scientific Research
- KAIST
- United States Air Force