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Non-Linear Thermovoltage in a Single-Electron Transistor
Paolo A. Erdman, Joonas T. Peltonen, Bibek Bhandari +5
We perform direct thermovoltage measurements in a single-electron transistor, using on-chip local thermometers, both in the linear and non-linear regimes. Using a model which accou…
Quantum Synchronisation in Nanoscale Heat Engines
Noufal Jaseem, Michal Hajdušek, Vlatko Vedral +3
Owing to the ubiquity of synchronization in the classical world, it is interesting to study its behavior in quantum systems. Though quantum synchronisation has been investigated in…
Maximum power and corresponding efficiency for two-level heat engines and refrigerators: optimality of fast cycles
Paolo Andrea Erdman, Vasco Cavina, Rosario Fazio +2
We study how to achieve the ultimate power in the simplest, yet non trivial, model of a thermal machine, namely a two-level quantum system coupled to two thermal baths. Without mak…
Floquet time crystals in clock models
Federica Maria Surace, Angelo Russomanno, Marcello Dalmonte +3
We construct a class of period--tupling discrete time crystals based on clock variables, for all the integers . We consider two classes of systems where this p…
Phase diffusion and the small-noise approximation in linear amplifiers: Limitations and beyond
A. Chia, M. Hajdusek, R. Fazio +2
The phase of an optical field inside a linear amplifier is widely known to diffuse with a diffusion coefficient that is inversely proportional to the photon number. The same proces…
Phase diagram of the dissipative quantum Ising model on a square lattice
Jiasen Jin, Alberto Biella, Oscar Viyuela +3
The competition between interactions and dissipative processes in a quantum many-body system can drive phase transitions of different order. Exploiting a combination of cluster met…