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Figure: A Brownian particle (subject to thermal agitation) wanders in a confined well until it reaches a threshold, where an automated system (a demon) acts on the position of the well to extract energy from the particle. The cyclical operation of the process creates a temporal information engine between the demon's actions.
Date du contenu
29.10.2025
News

Temporal information: an efficient fuel for a microscopic engine!

Researchers have revisited the famous "Maxwell's demon" experiment, supplementing its description with the temporal information managed by the demon to create a non-equilibrium state. This approach…
Figure : Electrostatic mapping (short times on the left, long times on the right) of surface charges deposited in the wake of a water droplet sliding over a hydrophobic solid. Their lateral diffusion over time reveals remarkably high mobility.
Date du contenu
23.10.2025
News

Ionic puddles: And the ions slided at interfaces

Researchers have recently demonstrated that ions, charged particles most commonly found in solution, can also become confined to the surface of a solid in a hydrated state, forming ‘ionic puddles’…
Sketch of paths of excitation through a microscope objective placed above the membrane (red cone) and luminescence collection by the fiber inside the cryostat. The arrow indicates the length of interaction between the fiber and the guide.
Date du contenu
21.10.2025
News

Collecting single photons using adiabatic coupling between waveguide and optical fiber

Researchers have shown that photons emitted by quantum dots (QDs) inserted into photonic crystal cavities and coupled to waveguides can be collected in the plane by a conical optical fiber, thanks to…
Date du contenu
16.10.2025
News

Unprecedented photon interactions: another step towards quantum computing?

Researchers have succeeded in creating strong interactions between several photons, thus taking a crucial step toward the realization of a quantum computer.

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