250 citations · 1k across the 16 of their papers we have counts for
16 papers
Quantum Synchronization on the IBM Q System
Martin Koppenhöfer, Christoph Bruder, Alexandre Roulet
We report the first experimental demonstration of quantum synchronization. This is achieved by performing a digital simulation of a single spin- limit-cycle oscillator on the qu…
Optimal synchronization deep in the quantum regime: resource and fundamental limit
Martin Koppenhöfer, Alexandre Roulet
We develop an analytical framework to study the synchronization of a quantum self-sustained oscillator to an external signal. Our unified description allows us to identify the reso…
Revealing the work cost of generalized thermal baths
Alexandre Roulet
We derive the work cost of using generalized thermal baths from the physical equivalence of quantum mechanics under unitary transformations. We demonstrate our method by considerin…
Quantum synchronization and entanglement generation
Alexandre Roulet, Christoph Bruder
We study synchronization in a two-node network built out of the smallest possible self-sustained oscillator: a spin 1. We first demonstrate that phase locking between the quantum o…
Quantum Rotor Engines
Stella Seah, Stefan Nimmrichter, Alexandre Roulet +1
This chapter presents autonomous quantum engines that generate work in the form of directed motion for a rotor. We first formulate a prototypical clock-driven model in a time-depen…
Synchronizing the Smallest Possible System
Alexandre Roulet, Christoph Bruder
We investigate the minimal Hilbert-space dimension for a system to be synchronized. We first show that qubits cannot be synchronized due to the lack of a limit cycle. Moving to lar…