Results 61 to 70 of about 1,317,718 (154)

Szilard languages of IO-grammars [PDF]

, 1979
In this paper we investigate Szilard languages of IO-grammars. First we show, similar to the proof in Moriya [Information and Control 22 (1973), 139–162], that these languages are context-sensitive.
Specht, J., Duske, J., Parchmann, R.
core   +1 more source

Quantum Carnot Bound from Petz Recovery Maps

Advanced Physics Research, Volume 5, Issue 2, February 2026.
A quantum bound (ηP$\eta_P$, the Petz Limit) is derived for the efficiency (η$\eta$) of a heat engine utilizing two‐level quantum systems (qubits) as the working substance. This limit, based on Petz recovery maps, is stricter than the classical Carnot limit (ηC$\eta_C$) for irreversible cycles.
Douglas Mundarain, Kevin Araya‐Sossa, Mario Miranda‐Rojas   +2 more
wiley   +1 more source

Rapid optimal work extraction from a quantum-dot information engine

Physical Review Research
The conversion of thermal energy into work is usually more efficient in the slow-driving regime, where the power output is vanishingly small. Efficient work extraction for fast-driving protocols remains an outstanding challenge at the nanoscale, where ...
Kushagra Aggarwal, Alberto Rolandi, Yikai Yang, Joseph Hickie, Daniel Jirovec, Andrea Ballabio, Daniel Chrastina, Giovanni Isella, Mark T. Mitchison, Martí Perarnau-Llobet, Natalia Ares   +10 more
doaj   +1 more source

Two-level system hyperpolarization using a quantum Szilard engine

, 2023
<p>Raw and processed data as well as a jupyter notebook for the evaluation associated with the paper "<a href="https://doi.org/10.1038/s41567-023-02082-8">Two-level system hyperpolarization using a quantum Szilard engine</a>" (publicly ...
Spiecker, Martin, Sander, Oliver, Shnirman, Alexander, Günzler, Simon, Matityahu, Shlomi, Drucker, Niv, Ustinov, Alexey, Gosling, Nicolas, Catelani, Gianluigi, Gusenkova, Daria, Cohen, Yonatan, Gebauer, Richard, Rieger, Dennis, Wernsdorfer, Wolfgang, Pop, Ioan M., Takmakov, Ivan, Paluch, Patrick, Winkel, Patrick, Valenti, Francesco   +18 more
core   +1 more source

Spaceborne Canopy Height Products Should Be Complemented With Airborne Laser Scanning Data: Toward a European Canopy Height Model

Earth and Space Science, Volume 13, Issue 1, January 2026.
Abstract Measuring and mapping vegetation structure is essential for understanding the functioning of terrestrial ecosystems and for informing environmental policies. Recent years have seen a growing demand for high‐resolution data on vegetation structure, driving their prediction at fine resolutions (1–30 m) at state, continental, and global spatial ...
Vítězslav Moudrý, Ruben Remelgado, Matthias Forkel, Michele Torresani, Gaia Vaglio Laurin, Eliška Šárovcová, Virginia E. Garcia Millan, Fabian Jörg Fischer, Tommaso Jucker, Michal Gallay, Patrick Kacic, Christopher R. Hakkenberg, Žiga Kokalj, Krzysztof Stereńczak, Yousef Erfanifard, Duccio Rocchini, Jiří Prošek, Stephanie Roilo, Kateřina Gdulová, Anna F. Cord, Michela Perrone, Juan Alberto Molina‐Valero, Jiří Šmída, Peter Surový, Zlatica Melichová, Marco Malavasi, Rudolf Urban, Martin Štroner, Dominik Seidel, Szilárd Szabó, László Bertalan, Anette Eltner, Roberto Cazzolla Gatti, Ján Kaňuk, Vojtěch Barták, Daniel Franke, Benjamin Brede, Qian Song, Mikhail Urbazaev, W. Daniel Kissling   +39 more
wiley   +1 more source

Maxwell’s Demon, Szilard’s Engine and Quantum Measurements [PDF]

, 1986
We propose and analyze a quantum version of Szilard's ``one-molecule engine.'' In particular, we recover, in the quantum context, Szilard's conclusion concerning the free energy ``cost'' of measurements: $ΔF \geq k_B T\ln2$ per bit of information.
openaire   +2 more sources

Demons: Maxwell's demon, Szilard's engine and Landauer's erasure–dissipation [PDF]

International Journal of Modern Physics: Conference Series, 2014
This talk addressed the following questions in the public debate at HoTPI: (i) energy dissipation limits of switches, memories and control; (ii) whether reversible computers are possible, or does their concept violate thermodynamics; (iii) Szilard's engine, Maxwell's demon and Landauer's principle: corrections to their exposition in the literature; (iv)
Laszlo Bela Kish, Claes-Göran Granqvist, Khatri, Sunil P., Wen, He   +3 more
openaire   +1 more source

The Demon in a Vacuum Tube

Entropy, 2013
In the present paper, several issues concerning the second law of thermodynamics, Maxwell’s demon and Landauer’s principle are dealt with. I argue that if the demon and the system on which it operates without dissipation of external energy are made of ...
Germano D'Abramo
doaj   +1 more source

Buffer‐Mediated Catalyst‐Free Strecker Reaction Toward Enzymatic Implementation

ChemistryOpen, Volume 14, Issue 12, December 2025.
Hydroxynitrile lyases (HNLs) are proven to accept imines as substrates and to catalyze the formation of α‐aminonitriles. The process results in the precursors of natural and unnatural α‐amino acids after extraction, without chromatography. This new application of HNL enzymes in Strecker reaction is an example for biocatalysis in multicomponent ...
Péter Magyar, Szilárd Újvári, Zsófia Molnár, Zoltán Orgován, Diána Balogh‐Weiser, Blanka Eszter Nagy, Diana Maria Scrob, László Poppe, Péter Ábrányi‐Balogh   +8 more
wiley   +1 more source

The Broken Engine of Szilard

, 2014
A crucial step in the operation of the Szilard engine is the isothermal expansion of a single particle system. This expansion, seemingly a natural consequence, is unable to proceed when the piston is considered appropriately to be a thermal system subject to fluctuations in energy at a constant temperature. The Szilard engine is thus unable to complete
openaire   +2 more sources