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公开(公告)号：US20180274900A1
公开(公告)日：2018-09-27
申请号：US15716196
申请日：2017-09-26
Applicant: Massachusetts Institute of Technology
Inventor： Jacob C. Mower , Nicholas C. Harris , Dirk R. Englund , Greg Steinbrecher
CPC classification number: G01B9/02083 , B82Y20/00 , G01B9/02049 , G06N10/00 , G06N20/00
Abstract: A programmable photonic integrated circuit implements arbitrary linear optics transformations in the spatial mode basis with high fidelity. Under a realistic fabrication model, we analyze programmed implementations of the CNOT gate, CPHASE gate, iterative phase estimation algorithm, state preparation, and quantum random walks. We find that programmability dramatically improves device tolerance to fabrication imperfections and enables a single device to implement a broad range of both quantum and classical linear optics experiments. Our results suggest that existing fabrication processes are sufficient to build such a device in the silicon photonics platform.
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公开(公告)号：US09791258B2
公开(公告)日：2017-10-17
申请号：US15143450
申请日：2016-04-29
Applicant: Massachusetts Institute of Technology
Inventor： Jacob C. Mower , Nicholas C. Harris , Dirk R. Englund , Greg Steinbrecher
CPC classification number: G01B9/02083 , B82Y20/00 , G01B9/02049 , G06N99/002 , G06N99/005
Abstract: A programmable photonic integrated circuit implements arbitrary linear optics transformations in the spatial mode basis with high fidelity. Under a realistic fabrication model, we analyze programmed implementations of the CNOT gate, CPHASE gate, iterative phase estimation algorithm, state preparation, and quantum random walks. We find that programmability dramatically improves device tolerance to fabrication imperfections and enables a single device to implement a broad range of both quantum and classical linear optics experiments. Our results suggest that existing fabrication processes are sufficient to build such a device in the silicon photonics platform.
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公开(公告)号：US10359272B2
公开(公告)日：2019-07-23
申请号：US15716196
申请日：2017-09-26
Applicant: Massachusetts Institute of Technology
Inventor： Jacob C. Mower , Nicholas C. Harris , Dirk R. Englund , Greg Steinbrecher
Abstract: A programmable photonic integrated circuit implements arbitrary linear optics transformations in the spatial mode basis with high fidelity. Under a realistic fabrication model, we analyze programmed implementations of the CNOT gate, CPHASE gate, iterative phase estimation algorithm, state preparation, and quantum random walks. We find that programmability dramatically improves device tolerance to fabrication imperfections and enables a single device to implement a broad range of both quantum and classical linear optics experiments. Our results suggest that existing fabrication processes are sufficient to build such a device in the silicon photonics platform.
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4.发明授权公开(公告)号：US10126506B2
公开(公告)日：2018-11-13
申请号：US15486088
申请日：2017-04-12
Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Inventor： Jacob C. Mower , Jelena Notaros , Mikkel Heuck , Dirk Robert Englund , Cosmo Lupo , Seth Lloyd
Abstract: A large-scale tunable-coupling ring array includes an input waveguide coupled to multiple ring resonators, each of which has a distinct resonant wavelength. The collective effect of these multiple ring resonators is to impart a distinct time delay to a distinct wavelength component (or frequency component) in an input signal, thereby carrying out quantum scrambling of the input signal. The scrambled signal is received by a receiver also using a large-scale tunable-coupling ring array. This receiver-end ring resonator array recovers the input signal by imparting a compensatory time delay to each wavelength component. Each ring resonator can be coupled to the input waveguide via a corresponding Mach Zehnder interferometer (MZI). The MZI includes a phase shifter on at least one of its arms to increase the tunability of the ring array.
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