Sound Waves Enable Individual Photon Control at High Speed.
MUNSTER, Germany, Dec.
1, 2022 — Light and sound are foundational to modern communication technology.
Glass fibers — with laser light— form the bedrock of the internet.
Nanoscale sound waves on chips serve to process signals at gigahertz frequencies for wireless transmission between devices.
One of the most pressing questions for the future is how these technologies can be adapted to quantum systems.
Future applications of quantum technology require flexible architectures to overcome limitations of current devices such as limited tunability or a lack of built-in quantum light sources.
On-chip generation of single photons is necessary to avoid the inevitable coupling losses incurred when using an off-chip source.
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A team of researchers has demonstrated control of individual light quanta, at an extremely high degree of precision, using sound waves to switch individual photons on a chip back and forth between two outputs at gigahertz frequencies.
Foreign [Music] S enable individual Photon control at High speed Munster Germany December 1st 2022 light and sound are foundational to Modern communication technology glass Fibers with laser light form the Bedrock Of the internet nanoscale sound waves on Chips serve to process signals at Gigahertz frequencies for wireless Transmission between devices one of the Most pressing questions for the future Is how these Technologies can be adapted To Quantum systems future applications Of quantum technology require flexible Architectures to overcome limitations of Current devices such as limited Tunability or a lack of built-in Quantum Light sources on chip generation of Single photons is necessary to avoid the Inevitable coupling losses incurred when Using an off-chip source to stay up to Date with latest top stories make sure To subscribe to this YouTube channel by Clicking the button above this video a Team of researchers has demonstrated Control of individual light quanta add An extremely high degree of precision Using sound waves to switch individual Photons on a chip back and forth between Two outputs at gigahertz frequencies the Method can be used in acoustic Quantum Technologies or complex integrated Photonic networks the researchers
Fabricated a dynamically reconfigurable Integrated photonic circuit comprising a Mocks under interferometer and surface Acoustic wave saw transducers directly On a monolithic semiconductor platform In the system the saws dynamically Strain the wavaguides which were Approximately 30 times thinner than a Human hair in addition the circuit Comprised an integrated Quantum Light Source in the form of quantum dots these Quantum dots just a few nanometers in Size are islands inside the wavaguides Which emit light as individual photons Said Mathias Weiss a researcher at the University of Munster the quantum dots Are included in our chip and so we don't Have to use complicated methods to Generate individual photons by means of Another source using nanoscale sound Waves the researchers directly switched The photons on the chip back and forth Between two outputs of at unprecedented Speed as they propagated the wava guides Said Dominic Buller who designed the Quantum chips as part of his PhD at the University of Valencia the team believes Its results to be a milestone on the way Toward hybrid Quantum Technologies as They combine three Quantum systems a Quantum Light Source in the form of Quantum dots the light quanta created And phonons the quantum particles and The sound wave the team has taken a
Further step toward acoustic Quantum Technologies Mauricio De Lima a Researcher at the University of Valencia Said we are already working flat out to Enhance our chip so that we can program The quantum state of the photons as we Wish or even control several photons With different colors between four or More outputs Foreign [Music]
