Cameron Calcluth

PhD student at Chalmers researching quantum computing theory, also interested in applications + ethics | he/him 🏳️‍🌈
@[email protected]

[PRX Quantum @PRX_Quantum]

A sufficient condition for universal quantum computation with continuous-variable systems is derived through a novel generalized mapping between bosonic and qubit states. @caemron @chalmersuniv @wacqt_sweden

https://t.co/2kZDzbAMyf

[Cameron Calcluth @caemron]

🥳

[Quantum @quantumjournal]

Freshly published in Quantum: Efficient simulation of Gottesman-Kitaev-Preskill states with Gaussian circuits by Cameron Calcluth, Alessandro Ferraro, and Giulia Ferrini https://t.co/9AONbImDFD

[Cameron Calcluth @caemron]

@BenJamesBrown @msKesselring @felix_thomsen @jenseisert @BartlettQuantum Very interesting! We also recently put out a paper where we demonstrate that the vacuum is a resource for quantum advantage (in the context of GKP-Gaussian circuits), i.e. "nothing" provides exponential advantage over classical computers! https://t.co/e449FrpWXn

[Cameron Calcluth @caemron]

@quantshah @victorvalbert I feel like the first image captures the concept quite well! What prompt did you use?

[Cameron Calcluth @caemron]

@victorvalbert Very abstract but it is something! 😃 I uploaded the images to Google drive: https://t.co/P7ZDeBuaJQ

[Cameron Calcluth @caemron]

Adding access to the vacuum (a very simple and usually considered simulatable) or realistic GKP states unlocks the full power of the quantum computer and can run all quantum algorithms (including e.g. Shor's algorithm)

[Cameron Calcluth @caemron]

Our new paper contains two main results. 1) We demonstrate that these circuits are simulatable on a regular computer (these include Clifford circuits, i.e. simulatable qubit circuits, and beyond)

https://t.co/AHrWCgotO6

[Cameron Calcluth @caemron]

The circuits shown in the first picture are efficiently classically simulatable, meaning a classical computer will be able to do everything these circuits can do in a reasonable (polynomial) time. We demonstrated this using a twist of the stabilizer formalism

[Cameron Calcluth @caemron]

My clickbait alternative title for this article was "Nothing gives quantum advantage" 🕳️🙀

[Cameron Calcluth @caemron]

Today our new paper is on the arXiv! We show that the **vacuum** unlocks quantum advantage (i.e. promotes otherwise classically simulatable circuits to those capable of universal quantum computation) for GKP circuits. https://t.co/AHrWCgotO6

[Cameron Calcluth @caemron]

Today our new paper is on the arXiv! We show that the **vacuum** unlocks quantum advantage (i.e. promotes otherwise classically simulatable circuits to those capable of universal quantum computation) for GKP circuits. https://t.co/AHrWCgotO6

[Cameron Calcluth @caemron]

Our new paper (my first 1st author) is on the arxiv! 🥳

[Wallenberg Centre for Quantum Technology - WACQT @wacqt_sweden]

New preprint from WACQT researchers showing that large classes of Gaussian circuits with input GKP states can be computed with regular classical computers. https://t.co/CcXRsOlNDi

[Cameron Calcluth @caemron]

We show that a quantum computer performing circuits of the types A,B will not be faster than a regular computer. This could help to identify which problems continuous-variable quantum computers should be used to solve, and offers a method for benchmarking in their development

[Cameron Calcluth @caemron]

New paper out (my first 1st author!)
We prove that two large sets (A,B in figure) of continuous-variable quantum circuits with input 0-GKP states are efficiently simulatable (solvable with regular computers). Co-authors: Giulia Ferrini, Alessandro Ferraro

https://t.co/CaeJwv5FBq

[Cameron Calcluth @caemron]

The wavefunction of a Gaussian-transformed GKP state can be calculated analytically (using results from number theory!) as long as it is transformed according to certain constraints.

[Cameron Calcluth @caemron]

@shaeema_zaman @NatSci_AU Congratulations!!! 🎉🤩