My new track “Naso del Liskamm” is now available on Spotify, SoundCloud and other major streaming services.
New track — Zinalrothorn
My new track “Zinalrothorn” is now available on SoundCloud.
MoodSnap now in Spanish
We’re delighted to announce that MoodSnap mood diary is now localised to the Spanish language. We’re incredibly excited that all our Spanish-speaking friends can now use MoodSnap in their native language.
Thank you to Melany Nadine Monroy Icaza for providing the translation and Christian Ronald Cresci for proof-checking.
Terminally Quantum podcast series
Together with Alexandra Dickie we’re pleased to announce our new quantum podcast series Terminally Quantum, hosted at The Quantum Terminal in Sydney, Australia. Our first episode, featuring Prof Peter Turner, CEO of the Sydney Quantum Academy, is now available on Spotify and Apple Podcasts.

MoodSnap jetzt in Deutsch
One of the goals of my free mood diary app MoodSnap is to make it accessible to as many people as possible. Today I’m pleased to announce that MoodSnap has been fully localised for the German language, with more languages in progress.
You can get MoodSnap on the Apple AppStore and find out more at the MoodSnap homepage.
The Aardvark
Climbing the Zinalrothorn (4,221m)
The island of Telendos






























3 Stripes route — Kalymnos, Greece
A general framework for the composition of quantum homomorphic encryption & quantum error correction
A new paper on the arXiv with Yingkai Ouyang on composing quantum homomorphic encryption with quantum error correction, necessary for large-scale, secure, cloud quantum computing.
Abstract: Two essential primitives for universal, cloud-based quantum computation with security based on the laws of quantum mechanics, are quantum homomorphic encryption with information-theoretic security and quantum error correction. The former enables information-theoretic security of outsourced quantum computation, while the latter allows reliable and scalable quantum computations in the presence of errors. Previously these ingredients have been considered in isolation from one another. By establishing group-theoretic requirements that these two ingredients must satisfy, we provide a general framework for composing them. Namely, a quantum homomorphic encryption scheme enhanced with quantum error correction can directly inherit its properties from its constituent quantum homomorphic encryption and quantum error correction schemes. We apply our framework to both discrete- and continuous-variable models for quantum computation, such as Pauli-key and permutation-key encryptions in the qubit model, and displacement-key encryptions in a continuous-variable model based on Gottesman-Kitaev-Preskill codes.