25 papers · 1 filter
Quantum annealers as programmable thermal machines
Jakub Pawłowski, Tomasz Śmierzchalski, Fengping Jin +3
Programmable quantum annealers are used for optimization, probabilistic sampling, and simulation, but their performance is commonly reported without the energy exchanged during com…
Procrustes Tomography -- reconstructing noisy quantum channels made easy
Josey Stevens, Reece Robertson, Sebastian Deffner
What is the most expensive part of quantum device characterization? Clearly, the answer is quantum process tomography. However, especially for noisy intermediate-scale quantum (NIS…
Energy-error tradeoff in encoding quantum error correction
Josey Stevens, Sebastian Deffner
While it has been widely recognized that genuine quantum advantage for practical problems might only be achieved with fault-tolerant quantum computers, it is still not entirely cle…
Over forty years of research towards the understanding of Quantum Brownian Motion -- the contributions of A. O. Caldeira
Marcus V. S. Bonança, Marcus V. S. Bonança, Sebastian Deffner +1
This article presents a brief account of Amir O. Caldeira's contributions to the theory of quantum Brownian motion. Motivated by its importance, we outline the description of Brown…
Quantum speed limit for measurement probabilities
Agung Budiyono, Sebastian Deffner
Any protocol to process quantum information has to conclude with a measurement, aimed at producing a specific set of probabilities of measurement outcomes. In this work, we investi…
Quantum speed limit for observables from quantum asymmetry
Agung Budiyono, Michael Moody, Hadyan L. Prihadi +2
Quantum asymmetry and coherence are genuinely quantum resources that are essential to realize quantum advantage in information technologies. However, all quantum processes are fund…