Publications (129)
Quantum Zeno effect in correlated qubits
Dominik Šafránek, Sebastian Deffner
Near term quantum hardware promises to achieve quantum supremacy. From a quantum dynamical point of view, however, it is not unambiguously clear whether fundamental peculiarities o…
Quantum speed limit for the OTOC from an open systems perspective
Devjyoti Tripathy, Juzar Thingna, Sebastian Deffner
Scrambling, the delocalization of initially localized quantum information, is commonly characterized by the out-of-time ordered correlator (OTOC). Employing the OTOC-Renyi-2 entrop…
Fluctuation theorems for autonomous work
Christopher Jarzynski, Sebastian Deffner, Saar Rahav
Classical fluctuation theorems for work have been obtained theoretically, and verified experimentally, within a non-autonomous framework in which work is performed on a system of i…
Information driven current in a quantum Maxwell demon
Sebastian Deffner
We describe a minimal model of a quantum Maxwell demon obeying Hamiltonian dynamics. The model is solved exactly, and we analyze its steady-state behavior. We find that writing inf…
Simon's algorithm in the NISQ cloud
Reece Robertson, Emery Doucet, Ernest Spicer +1
Simon's algorithm was one of the first problems to demonstrate a genuine quantum advantage. The algorithm, however, assumes access to noise-free qubits. In our work we use Simon's…
Quantum Thermodynamics: An introduction to the thermodynamics of quantum information
Sebastian Deffner, Steve Campbell
This book provides an introduction to the emerging field of quantum thermodynamics, with particular focus on its relation to quantum information and its implications for quantum co…