公开(公告)号：US20240220839A1

公开(公告)日：2024-07-04

申请号：US18557493

申请日：2022-04-25

申请人： President and Fellows of Harvard College

发明人： David S. Levonian ,  Ralf RIEDINGER ,  Bartholomeus MACHIELSE ,  Mihir Keshav BHASKAR ,  Mikhail D. LUKIN

IPC分类号： G06N10/40

CPC分类号： G06N10/40

摘要： Systems and methods are disclosed for optically entangling distinguishable qubits. A system can include a first qubit having an optical transition at a first qubit frequency, a second qubit having an optical transition at a second qubit frequency, and a light source producing a first light beam having at least a first frequency. An interferometer can be configured to convert the first light beam into at least one second light beam, to provide the at least one second light beam to the first qubit and the second qubit, and to provide an output light signal. The interferometer can include a first optical modulator that converts the first light beam into the at least one second light beam, and a second optical modulator that produces the output light signal from the at least one second light beam.

公开(公告)号：US12014246B2

公开(公告)日：2024-06-18

申请号：US17623757

申请日：2020-07-16

申请人： President and Fellows of Harvard College

发明人： Mihir Keshav Bhaskar ,  Denis D. Sukachev ,  Christian Thieu Nguyen ,  Bartholomeus Machielse ,  David S. Levonian ,  Ralf Riedinger ,  Mikhail D. Lukin ,  Marko Loncar

IPC分类号： G06N10/70 ,  B82Y20/00 ,  G02B6/122

CPC分类号： G06N10/70 ,  B82Y20/00 ,  G02B6/1225

摘要： 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.