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Sebastian Deffner

University of Maryland Baltimore County

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Preprint Oct 2026

Quantum Work Statistics from Entanglement-Assisted Invariance

We demonstrate that the one-time measurement scheme is more consistent than the standard two-time measurement scheme with respect to the fundamental symmetry of entanglement, namely entanglement-assisted invariance (envariance). In particular, the work statistics obtained from the one-time measurement scheme arise natu...

A. Sone, Akram Touil, Emery Doucet et al. · 0 citations
Preprint Oct 2026

Secure Quantum Handshakes: Quantum Network Verification Via Simon's Algorithm

Quantum networking represents the future of secure communication, enabling fundamentally new capabilities through quantum information exchange. However, these networks require secure, high-fidelity quantum communication channels, and they require every participating node to be a genuine quantum device. Currently, there...

Reece Robertson, Sejal Patil, Sebastian Deffner · 0 citations
Preprint Aug 2026

Quantum annealers as programmable thermal machines

Programmable quantum annealers are used for optimization, probabilistic sampling, and simulation, but their performance is commonly reported without the energy exchanged during computation. Here we characterize the D-Wave quantum annealer as a closed thermodynamic cycle. From initial and final Ising energies and an eff...

Jakub Pawłowski, Tomasz Śmierzchalski, Fengping Jin et al. · 0 citations

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