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Quantum at a glance

Videos from the UCL Quantum Science and Technology Institute, events and media. We hope that they can provide you with insight and inspiration to learn more about the future of quantum computing.

 

Video on QUES2T Project Harnessing the Future of Quantum Technology

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The QUES2T programme focuses on three of the most promising solid-state QT platforms to date: superconducting circuits, silicon-based nano-devices with the longest-lived solid-state qubits and carbon-based devices such as colour-centres in diamond.
 

Video Abstract: Reducing readout overhead in silicon quantum computing by sequential readout

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PhD student Virginia Ciriano-Tejel explains to us the importance of reducing readout overhead in silicon quantum computing in this video which she made for a competition at a conference back in Spain.
 

Video Abstract: Coherently driven microcavity-polaritons and the question of superfluidity

YouTube Widget Placeholderhttps://www.youtube.com/watch?v=6Ti6FQTWLBM&t=101s

Richard Juggins and Marzena Szymańska discuss their latest findings related to polaritons, as published on Nature Communications.
 

Video Abstract: Gravimetry through Non-Linear Optomechanics

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For the first time, researchers at UCL have proposed a new method for measuring gravitational acceleration with a sensitivity that can in principle surpass the standard set by atomic interferometry.
 

Annual Physics Lecture at UCL given by Dr Alexandra Olaya-Castro: Bridging Quantum Science and Biology

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Quantum Science has achieved a remarkable theoretical and experimental success. It allows us to predict, quantify and probe “quantumness” in a variety of atomic, solid state, and optical scenarios.  This lecture discusses how this field is helping to draw a sophisticated picture of fundamental processes in biology such as photosynthesis. 

Lecture Highlight: An Efficient Quantum Algorithm for the Moebius Function

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This talk describes an efficient quantum algorithm for the Moebius function from the natural numbers to {-1,0,1} and discusses the algorithmic techniques used in this algorithm. While the Moebius function was previously known to be in BQP, here they present an algorithm that does not rely on factorization via Shor's algorithm as an intermediate step.

 

In the media: BBC News Explains Quantum Computing

BBC News Segment on Quantum COmputing
The BBC News Technology desk reports on the emerging field of quantum technologies, including videos featuring UCLQ academics!

 

Video: Showcase on Future Aviation Security Solutions

YouTube Widget Placeholderhttps://www.youtube.com/watch?v=hfYMFp70qwQ

Dr Cameron Deans interviewed during a showcase of the FASS initiative by DASA, DfT, and the Home Office about a new quantum technology-based scanner that could improve airport security by imaging luggage and small cargo without using hazardous ionising radiation such as X-rays.
 

Video: In conversation with UCLQ: Prof Jason Petta 

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Jason Petta is a professor of physics at Princeton University. While visiting UCLQ we asked him about the main challenges that quantum technologies face for the future.

Lecture Highlight: Coherent Coupling of Spin and Light

YouTube Widget Placeholderhttps://www.youtube.com/watch?v=qAVF236P7GE

Coherent coupling of spin and light could enable a quantum internet where highly coherent electron spins are used for quantum computing. In this colloquium, Prof Petta describes experiments coupling a single spin in silicon to a single microwave frequency photon.
 

Explainer: Why are Quantum Computers Powerful?

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UCLQ Director Prof John Morton gives his explanation of what gives Quantum Computing it's power.
 

Lecture Highlight: Magnetic Graphene

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Spontaneous magnetic order is expected to occur in graphene in two different situations: at the zigzag edges at zero applied field and in the Quantum Hall regime, at half filling. This talk discusses theory and experiments that would conclusively confirm room temperature edge ferromagnetism in graphene.

Explainer: Race to Build a Quantum Computer

YouTube Widget Placeholderhttps://www.youtube.com/watch?v=exYeKn2uZJM

A recent interview between UCLQ director Prof John Morton and Roger Highfield, Director of External Affairs at the Science Museum about commercial interest in quantum computers, ‘quantum supremacy’ and more.
 

Video: Tell me about Quantum Technologies

YouTube Widget Placeholderhttps://www.youtube.com/watch?v=GLzKsXk4mkA

Professor John Morton, Director of the Quantum Science and Technology Institute, talks about the available programmes at UCLQ. 

Video: Royal Society overview of Quantum Computing

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This video piece from the Royal Society featuring UCLQ academics aims to explain how quantum computers fit in to the history of computation.
 

Conceptual Art: Spin Chains

Spin Chains

Quantum communication between two nodes of a quantum network is a key ingredient for universal quantum information processing. At the atomic scale, for transferring quantum states one may exploit the intrinsic interaction between the spins in a strongly correlated many-body system. In such schemes an arbitrary quantum state is prepared at the beginning of a spin array and the natural time evolution of the interacting system transfers this information along the chain so it can be taken at the other end for further processing.

Lecture Highlight: Nanowire Qubits

YouTube Widget Placeholderhttps://www.youtube.com/watch?v=QN5tns6TIO4

Semiconductor nanowires are versatile materials that enable new means of qubit control using electric fields. This talk presents experiments in which we have developed nanowire-based qubits and integrated them with superconducting microwave cavities for scaling and readout.

Research Image: Quantum Dot

Quantum Dot

This image shows at atomic-scale a quantum dot fabricated by removing 5 hydrogen atoms from a H-terminated Si(001) surface. All three images show the same physical structure probed at different energies, and what is observed are the bound states of the quantum dot. These images are each approximately 5 nm x 5 nm.