Nanophotonic quantum memory

US12014246B2 · kind B2 · utility

Assignee

• President and Fellows of Harvard College · US

Inventors

• Mihir Keshav Bhaskar · Cambridge, US
• Denis Sukachev · Brookline, US
• Christian Thieu Nguyen · Cambridge, US
• Bartholomeus Johannes Machielse · Somerville, US
• David Sarkis Levonian · Cambridge, US
• Ralf Riedinger · Cambridge, US
• Mikhail D. Lukin · Cambridge, US
• Marko Loncar · Somerville, US

Key dates

• Filing date: Jul 16, 2020
• Grant date: Jun 18, 2024
• Expiry date: Aug 6, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B6/30
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Systems and methods are disclosed for making a quantum network node. A plurality of scoring function F values are calculated for an array of at least two photonic crystal cavity unit cells, each having a lattice constant a and a hole having a length Hx and a width Hy. A value of a, a value of Hx, and a value of Hy are selected for which a scoring function value is at a maximum. A waveguide region and the array of at least two photonic crystal cavity unit cells based on the selected values are formed on a substrate. At least one ion between a first photonic crystal cavity unit cell and a second photonic crystal cavity unit cell are implanted and annealed into a quantum defect. A coplanar microwave waveguide is formed on the substrate in proximity to the array of at least two photonic crystal cavity unit cells.