Corning Incorporated

Nikolay Alekseyevich Kaliteevskiy

Ming-Jun Li

Daniel Aloysius Nolan

Stuart Gray

Michal Mlejnek

Fedor Dmitrievich Kiselev

Craig John Mancusi Ungaro

Ralf Joachim Terbrueggen

Nickolaos Savidis

Petr Mikhaylovich Sterlingov

Viacheslav Viacheslavovich Ivanov

A quantum computing system that includes a reconfigurable quantum processing unit optically coupled to a photon source and a photon detector and having a plurality of Mach-Zehnder interferometers (MZIs), and a controller communicatively coupled to the plurality of MZIs and configured to generate a control signal to alter a phase setting of at least one of the plurality of MZIs and the plurality of MZIs are configured to alter a phase of one or more photons that traverse the plurality of MZIs. In addition, the quantum computing system includes a quantum memory array having a plurality of quantum memories optically coupled to the plurality of MZIs, where each quantum memory is configured to absorb a photon received by the quantum memory, the received photon including quantum information, and release a photon including the quantum information of the received photon into the reconfigurable quantum processing unit.

Quantum computing systems having a reconfigurable quantum processing unit

A photon number resolving detector system includes a photon source positioned at an input end, first and second photon detectors positioned at a detection end, and a plurality of optical couplers positioned between the input and detection ends. The plurality of optical couplers include an initial optical coupler optically coupled to the photon source, a final optical coupler optically coupled to the first and second photon detectors, and intermediate optical couplers positioned between the initial optical coupler and the final optical coupler. A first input link is optically coupled to the photon source and the initial optical coupler and a plurality of dual path spans are optically coupled to adjacent optical couplers. The plurality of dual path spans each include an undelayed path having an undelayed fiber link and a delayed path having a quantum memory positioned between and optically coupled to input and output sub-links.

Photon number resolving detector systems using quantum memories

A method for processing a transparent workpiece that includes directing a laser beam the transparent workpiece. The laser beam incident to the impingement surface has an oblong angular spectrum and portion of the laser beam directed into the transparent workpiece is a laser beam focal line and generates an induced absorption to produce a defect within the transparent workpiece. The laser beam focal line includes a wavelength &#x3bb;, a spot size w, a Rayleigh range Zthat is greater than where Fis a dimensionless divergence factor comprising a value of 10 or greater, and an internal beam angle of greater than 10&#xb0; relative to a plane orthogonal to an impingement surface at an impingement location, such that the defect has a defect angle within the transparent workpiece of greater than 10&#xb0; relative to a plane orthogonal to the impingement surface at the impingement location.

Phase-modified quasi-non-diffracting laser beams for high angle laser processing of transparent workpieces

A quantum communications system includes a first quantum repeater and a second quantum repeater each positioned at a repeater node and each having a first quantum memory and a second quantum memory. A first channel switch is optically coupled to the first quantum repeater and a second channel switch is optically coupled to the second quantum repeater. Further, a first sub-channel extends between and optically couples the first channel switch and the first quantum memory of the first quantum repeater, a second sub-channel extends between and optically couples the first channel switch and the first quantum memory of the second quantum repeater, a third sub-channel extends between and optically couples the second channel switch and the second quantum memory of the first quantum repeater, and a fourth sub-channel extends between and optically couples the second channel switch and the second quantum memory of the second quantum repeater.

Quantum communications systems comprising multiple-channel quantum repeaters

A quantum key generation system intended to mitigate the effect of the dead time of the photon detectors, the system including a photon generator, a photon pathway, a channel switch, and a photon detector unit. The photon pathway optically couples the photon generator and the channel switch. The channel switch is disposed between and optically coupled to the photon pathway and the photon detector unit. The photon detector unit includes a plurality of photon detectors and a plurality of detector unit sub-channels. Each detector unit sub-channel of the plurality of detector unit sub-channels optically couples the channel switch with an individual photon detector of the plurality of photon detectors. The channel switch is actuatable between a plurality of optical engagement positions. Further, each optical engagement position of the channel switch optically couples the photon pathway with a photon detector of the plurality of photon detectors. A plurality of quantum memories may be respectively placed between the switch and the plurality of photon detectors.

Quantum communication methods and systems for mitigating the detector dead time of photon detectors

A method of communicating information includes generating a photon pulse using an entangled photon generator. The photon pulse includes a photon pulse state and is temporally positioned within a photon pulse time slot. When the photon pulse is in a populated photon pulse state, it includes first and second entangled photons and the entangled photon generator outputs the first entangled photon into a first photon pathway optically coupled to an output end photon detector unit, and the second entangled photon into a second photon pathway, optically coupled to a receiving end photon detector unit. The method also includes determining the photon pulse state of the photon pulse using the output end photon detector unit, which outputs a signal regarding the photon pulse state of the photon pulse into a signal pathway to provide the receiving end photon detector unit with information regarding the photon pulse state of the photon pulse.

Growing community of inventors

Saint-Petersburg, Russia

Nikolay Alekseyevich Kaliteevskiy