Harvard College

Ecole Polytechnique Federale De Lausanne

Eth Zurich

Rigetti & Co, LLC

Marko Lončar

Matthew J Reagor

Jérôme Faist

Jeffrey Cole Holzgrafe

Ileana-Cristina Benea-chelmus

Alexa Herter

Yazan Lampert Almahmoud

Amirhassan Shams-ansari

Alessandro Tomasino

A terahertz device for detecting or emitting or for both detecting and emitting electromagnetic waves in the terahertz frequency range. The terahertz device comprises: a first waveguide branch and a second waveguide branch, the first and second waveguide branches being configured to allow optical signals to propagate through them, the first and second waveguide branches being nonlinear dielectric elements with a thickness of at most 500 micrometres; and an antenna arrangement comprising a set of antennas for capturing and/or emitting electromagnetic waves in the terahertz frequency range, the antennas being placed along at least one of the waveguide branches in an immediate vicinity of the respective waveguide branch and/or around the respective waveguide branch to at least partially enclose the respective waveguide branch in a respective antenna gap of the respective antenna.

On-chip terahertz thin-film devices

In a general aspect, a photonic quantum network is disclosed. In some implementations, microwave modes and optical modes are generated on first and second quantum processing units (QPUs) by operation of a first transducer device of the first QPU and a second transducer device of the second QPU. The microwave modes are transmitted within the first and second QPUs from the first and second transducer devices to respective first and second qubit devices. The optical modes are transmitted from the first and second QPUs to an interferometer device. By operation of the interferometer device, output signals are generated on respective output channels based on the optical modes from the first and second QPUs. Based on the output signals detected by operation of photodetector devices coupled to the respective output channels, quantum entanglement transferred to the first and second qubit devices by the microwave modes is identified.

Photonic quantum networking for large superconducting qubit modules

Growing community of inventors

Belmont, MA, United States of America

Marko Lončar