UCLQ brings together the quantum science community, facilitating collaborative research and providing a platform to engage the public, users, and policy makers.
London, UK
Joined January 2014
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uclquantum retweeted
We're hiring a Senior Operations Officer for the new David Potter Institute for Quantum Information and Spacetime @ucl in London! A varied role: seminars, visitors, launch events, workshops, website, and grant support. Please RT & spread the word! ucl.ac.uk/mathematical-physi…
uclquantum retweeted
In the meantime, some great news: We’ve been awarded a gift from the David and Elaine Potter Foundation, and in October, we will be launching the David Potter Institute for Quantum Information and Spacetime @ucl
ucl.ac.uk/news/2026/aug/ps8-…, more info at ucl.ac.uk/mathematical-physi…
uclquantum retweeted
The path-integral formulation of the Postquantum theory of classical gravity is now in Physical Review X! Other results from our group have been published at the same time, so this is a good opportunity to review progress. superposer.substack.com/p/po… 1/2
ALT The action for postquantum classical gravity
uclquantum retweeted
A new series of covariant path integrals for quantum-classic field interactions enables complete positivity and space-time symmetries, achieving a fundamental theory that could reconcile general relativity with quantum mechanics.
Check it out: go.aps.org/4fBp0dQ
ALT Two Feynman diagrams are depicted. The top diagram shows two red wavy lines labeled "g\mu" entering and exiting black dots connected by a blue solid loop line labeled "\phi_{bra}". The bottom diagram has a dashed blue loop line labeled "\phi_{ket}" connecting similar features. A plus sign separates the diagrams.
ALT A table representing the classical-quantum path integral, which generalizes the Feynman-Vernon path integral of open quantum systems and the stochastic path integral of classical systems. The first column depicts the equation for the path integral, the second column contains the action equation, and the third column contains the completely positive (CP) condition equation.
uclquantum retweeted
We invite applications for Research Fellow positions as part of a new initiative to be launched in late 2026 at the interface of quantum information theory and gravity! Please RT and let potentially interested researchers know. 1/
Congrats to both! We are fortunate to have Charlie is a regular visitor to @UCLQuantum @uclmaps
uclquantum retweeted
As promised... No, classical spacetime can’t produce entanglement. I can create entanglement by turning a knob on a laser, but the knob isn't mediating the entanglement. Is the knob "producing" the entanglement? open.substack.com/pub/superp…
uclquantum retweeted
When and how will quantum computing broadly benefit humanity? Despite exhilarating recent progress, we still don’t know. Here my friend Jens Eisert and I assess the current status and the challenges ahead. We are optimistic about the quantum future, but there’s a lot of work to do.
arxiv.org/abs/2510.19928
uclquantum retweeted
What if the measurement problem isn't about explaining how the classical world emerges from the quantum world...
...but about what happens when quantum systems interact with something that's already classical?
Turns out, the collapse postulate + Born rule emerge!
🧵👇1/5
ALT A one-world interpretation of quantum mechanics (title and abstract)
uclquantum retweeted
Maite Arcos's PhD results are hitting the arxiv! A resource theory of gambling, and a paper on adversarial thermodynamics are out today. Gambling provides an operational way to quantify who has more information. And it can be extended into the quantum domain!🧵1/
ALT Maite Acros (left), Charlie Bennet (center) Lluis Masanes (right)
uclquantum retweeted
Quantum twitter has mostly moved to the other place. So if you're interested in some profiles or resources to help make sense of today's announcement, check out the link in the reply below. Since this post will likely be throttled, please RT if you see this. 1/
ALT post from the other place, with a list of quantum mechanics to follow.
uclquantum retweeted
Jonathan Oppenheim (@postquantum) is challenging one of the core assumptions of modern physics. His radical idea? Spacetime might not be quantum at all. Could gravity stand apart from the quantum realm? He’s working with experimental colleagues to find out.
bit.ly/4eO067d
#Physics #Spacetime
uclquantum retweeted
A new publication in Quantum: Tensor-network-based variational Monte Carlo approach to the non-equilibrium steady state of open quantum systems by Dawid A. Hryniuk and Marzena H. Szymańska doi.org/10.22331/q-2024-09-1…
uclquantum retweeted
Apply for a research fellowship hosted by us! Some deadlines for expressions of interest are as early as May 31st. If you'd like to pursue research in quantum information and spacetime, drop me an email, and please RT or let excellent candidates know! ucl.ac.uk/physics-astronomy/…
Is it dark matter or is it wobbly spacetime? 👀 Find out why it's probably the erratic nature of wobbly spacetime on March 15th when Jonathan will give a public lecture on gravity and quantum theory. You can get tickets to the London and virtual event at ucl.ac.uk/event-ticketing/ap…
Folks, something seems to be happening... We show that our theory of gravity is valid down to the shortest distances arxiv.org/abs/2402.17844. and that it can explain the expansion of the universe and galactic rotation without dark matter or dark energy arxiv.org/abs/2402.19459 1/
uclquantum retweeted
UCL staff: apply for up to £50,000 in funding to test, de-risk, and show the commercial potential of your quantum research.
The deadline for applications is 14 March.
Learn more: bit.ly/3STjW8n
@UCL_Business @uclmaps @UCLEngineering @UCLQuantum
ALT Abstract image of multi-coloured lights against a black background
uclquantum retweeted
Dreaming about becoming a quantum engineer? Apply to our early career programme!
This is a permanent, entry-level role with a 12-month training programme to help kickstart your profession in industrial quantum engineering.
Apply: buff.ly/3Sxb9Kj
uclquantum retweeted
Is space-time quantum or classical in nature? Professor Jonathan Oppenheim @postquantum and Professor Sougato Bose @uclmaps talk to the @newscientist about one of physics's biggest questions and the experiments hoping to resolve it @UCLQuantum newscientist.com/article/mg2… (£)
ALT New Scientist magazine front cover
uclquantum retweeted
In case you are not aware, we have been releasing short videos with the 2018 #NobelPrize winner, Prof Donna Strickland, on our YouTube channel up to the end of October. Here is the 2nd one on #WomeninSTEM, #lasers in the media, our community & society.
youtube.com/watch?v=50xv2AFC…