Method and system for generation and control of high-dimensional multi-partite quantum states

US11556831B2 · kind B2 · utility

Assignees

• INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE · CA
• The University Court of the University of Glasgow · GB

Inventors

• Michael Kues · Montréal, CA
• Christian Reimer · Wellesley, US
• STEFANIA SCIARA · Montréal, CA
• Piotr Roztocki · Montréal, CA
• Luis Romero Cortes · Aljaraque, ES
• José Azaña · Montréal, CA
• Yoann Jestin · Montréal, CA
• Roberto Morandotti · Mercenasco, IT

Key dates

• Filing date: Nov 28, 2018
• Grant date: Jan 17, 2023
• Expiry date: Oct 15, 2039

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B82Y10/00
• WIPO field: Micro-structural and nano-technology
• WIPO sector: Chemistry

Abstract

A method and a system for generating a hyper-entangled high-dimensional time-bin frequency-bin state, the method comprising generating a hyper-entangled state composed of a time-bin and frequency-bin encoded state, and individually modifying at least one of: i) the amplitude and ii) the phase of the state components at different frequency-bins and different time-bins of the hyper-entangled state. The system comprises a non-linear medium exited with multiple pulses in broad phase-matching conditions, a frequency mode separator and an amplitude/phase modulator, the frequency mode separator temporally and spatially separating frequency modes of the hyper-entangled state, the amplitude/phase modulator individually modifying at least one of: i) the amplitude (and ii) the phase of the state components at different frequency-bins and different time-bins of the hyper-entangled state.