Larval data to the caddisfly fauna of the Szuha stream and its environments, NE Hungary (Trichoptera)

Localities and collecting data of 29 caddisfly species belonging 7 families are given from 31 collecting sites of the Szuha-valley, NE Hungary. All of the species are new to this region of Hungary

The Harmonic Quantum Szil\'ard Engine

The Szil\'ard engine is a mechanism (akin to Maxwell's demon) for converting information into energy, which seemingly violates the second law of thermodynamics. Originally a classical thought experiment, it was extended to a quantized treatment by Zurek. In this article we show how a quantum Szil\'ard engine greatly simplifies by replacing the traditional rigid box with a harmonic potential, thus extending the scope of the model. Remarkably, all calculations are exact.Comment: 16 pages, 5 figure