Information Contraction under $( varepsilon,δ)$-Differentially Private Mechanisms Theshani Nuradha, Ian George, Christoph Hirche http://arxiv.org/abs/2601.16845

Ian George, @christophhirche.bsky.social, Theshani Nuradha, & I have issued an update of our q. Doeblin coefficients paper: arxiv.org/abs/2503.22823 Main changes consist of an expanded section 8.5 on mixing, indistinguishability, & decoupling times of quantum Markov chains. See attached images

Cause for celebration: millions of euros in continued funding for research on photonics, measurements at the quantum frontier and personalised care for hearing loss. #LUH has been granted funding for three Clusters of Excellence and will apply for University of Excellence status.

Slides on "Quantum Doeblin Coefficients: Interpretations and Applications" available here: zenodo.org/records/1544... Joint work with Ian George, @christophhirche.bsky.social, and Theshani Nuradha

New preprint in preparation for ISIT: With Oxana Shaya, "Partial orders and contraction for BISO channels" scirate.com/arxiv/2504.1... Within the BISO channels the BEC and BSC are extremal in many aspects. We extend this to additional partial orders and show what role contraction plays here.

Joint work w/ Ian George, Christoph Hirche @christophhirche.bsky.social, & Theshani Nuradha "Quantum Doeblin Coefficients: Interpretations and Applications": arxiv.org/abs/2503.22823 Great collaboration & enjoyable project! Interpretations of q. Doeblin coefficients in attached tables

Thanks for hosting me at Cornell last week, @markwilde.bsky.social !

The next Cornell ECE FIND seminar speaker on March 6 will be @christophhirche.bsky.social: find.engineering.cornell.edu/seminar/talk... "New quantum f-divergences and their applications" Looking forward to it!

New preprint: "Optimization Driven Quantum Circuit Reduction" w/ Bodo Rosenhahn & Tobias J. Osborne Transpiling quantum circuits well to specific gate sets is a hard but important problem near-term. We apply tools from ML to give an effective and scalable approach. scirate.com/arxiv/2502.1...

We're looking for a new addition to our group. Drop me a message if you're interested!

Trying this out by announcing our new preprint: Not too long ago, @marcotomamichel.bsky.social and I gave a new definition of quantum f-divergences. Now, we teamed up with Salman Beigi to dive deeper into their properties and how they relate to previous definitions: scirate.com/arxiv/2501.0...