Search Results - "Allahverdyan, A E"

Work Extraction from Fluid Flow: The Analog of Carnot’s Efficiency by Allahverdyan, A. E.

“…Aiming to explore physical limits of wind turbines, we develop a model for determining the work extractable from a compressible fluid flow. The model employs…”
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Defining the Work Done on an Electromagnetic Field by Allahverdyan, A E, Karakhanyan, D

“…The problem of defining work done on an electromagnetic field (EMF) via moving charges does not have a ready solution, because the standard Hamiltonian of an…”
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Maximal work extraction from finite quantum systems by Allahverdyan, A. E, Balian, R, Nieuwenhuizen, Th. M

“…Thermodynamics teaches that if a system initially off-equilibrium is coupled to work sources, the maximum work that it may yield is governed by its energy and…”
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Thermodynamic selection: mechanisms and scenarios by Babajanyan, S G, Koonin, E V, Allahverdyan, A E

“…Thermodynamic selection is an indirect competition between agents feeding on the same energy resource and obeying the laws of thermodynamics. We examine…”
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Adaptive Heat Engine by Allahverdyan, A E, Babajanyan, S G, Martirosyan, N H, Melkikh, A V

“…A major limitation of many heat engines is that their functioning demands on-line control and/or an external fitting between the environmental parameters…”
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Community detection with and without prior information by Allahverdyan, A. E, Ver Steeg, G, Galstyan, A

“…We study the problem of graph partitioning, or clustering, in sparse networks with prior information about the clusters. Specifically, we assume that for a…”
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Statistical thermodynamics of quantum Brownian motion: construction of perpetuum mobile of the second kind by Nieuwenhuizen, Th M, Allahverdyan, A E

“…The Brownian motion of a quantum particle in a harmonic confining potential and coupled to harmonic quantum thermal bath is exactly solvable. Though this…”
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Extraction of work from a single thermal bath in the quantum regime by Allahverdyan, AE, Nieuwenhuizen, TM

“…The stationary state of a quantum particle strongly coupled to a quantum thermal bath is known to be non-Gibbsian, due to entanglement with the bath. For…”
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Thermodynamics of adiabatic feedback control by Allahverdyan, A. E, Saakian, D. B

“…We study adaptive control of classical ergodic Hamiltonian systems, where the controlling parameter varies slowly in time and is influenced by the system's…”
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Employing feedback in adiabatic quantum dynamics by Allahverdyan, A. E, Mahler, G

“…We study quantum adiabatic dynamics, where the slowly moving field is influenced by the system's state (feedback). The feedback is achieved either via…”
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Glassy state of native collagen fibril? by Gevorkian, S. G, Allahverdyan, A. E, Gevorgyan, D. S, Hu, C.-K

“…Our micromechanical experiments show that viscoelastic features of type-I collagen fibril at physiological temperatures display essential dependence on the…”
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Energy and entropy: Path from game theory to statistical mechanics by Babajanyan, S. G., Allahverdyan, A. E., Cheong, Kang Hao

“…Statistical mechanics is based on the interplay between energy and entropy. Here we formalize this interplay via axiomatic bargaining theory (a branch of…”
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Thermal (in)stability of type I collagen fibrils by Gevorkian, S G, Allahverdyan, A E, Gevorgyan, D S, Simonian, A L

“…We measured the Young's modulus at temperatures ranging from 20 to 100 degrees C for a collagen fibril that is taken from a rat's tendon. The hydration change…”
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Quantum thermodynamics: Thermodynamics at the nanoscale by Allahverdyan, A. E., Balian, R., Nieuwenhuizen, Th. M.

“…A short introduction on quantum thermodynamics is given and three new topics are discussed. (1) Maximal work extraction from a finite quantum system. The…”
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Curie-Weiss model of the quantum measurement process by Allahverdyan, A. E, Balian, R, Nieuwenhuizen, Th. M

“…A Hamiltonian model is solved, which satisfies all requirements for a realistic ideal quantum measurement. The system S is a spin-$\frac{1}{2}$, whose…”
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Nonequilibrium quantum fluctuations of work by Allahverdyan, A E

“…The concept of work is basic for statistical thermodynamics. To gain a fuller understanding of work and its (quantum) features, it needs to be represented as…”
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Kinetics of the helix-coil transition by Allahverdyan, A. E, Gevorkian, S. G, Simonian, A

“…Based on the Zimm-Bragg model we study cooperative helix-coil transition driven by a finite-speed change of temperature. There is an asymmetry between the coil…”
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Statistical networks emerging from link-node interactions by Allahverdyan, A. E, Petrosyan, K. G

“…We present a network model, where the nodes and links are interacting statistical variables. Each node can be in one of two states (Ising variable), the like…”
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Determining a quantum state by means of a single apparatus by Allahverdyan, A E, Balian, R, Nieuwenhuizen, Th M

“…The unknown state rho of a quantum system S is determined by letting it interact with an auxiliary system A, the initial state of which is known. A one-to-one…”
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Free energy for non-equilibrium quasi-stationary states by Allahverdyan, A. E., Martirosyan, N. H.

“…We study a class of non-equilibrium quasi-stationary states for a Markov system interacting with two different thermal baths. We show that the work done under…”
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