Zobrazeno 1 - 10
of 346
pro vyhledávání: '"Biham O"'
Publikováno v:
{\it Phys. Rev. E} {\bf 101}, 062308 (2020)
We present analytical results for the structural evolution of random networks undergoing contraction processes via generic node deletion scenarios, namely, random deletion, preferential deletion and propagating deletion. Focusing on configuration mod
Externí odkaz:
http://arxiv.org/abs/2009.04249
Diffusion-limited reactions on disordered surfaces with continuous distributions of binding energies
We study the steady state of a stochastic particle system on a two-dimensional lattice, with particle influx, diffusion and desorption, and the formation of a dimer when particles meet. Surface processes are thermally activated, with (quenched) bindi
Externí odkaz:
http://arxiv.org/abs/1108.0544
Publikováno v:
Phys. Rev. E 81, 061109 (2010)
Reaction-diffusion systems where transition rates exhibit quenched disorder are common in physical and chemical systems. We study pair reactions on a periodic two-dimensional lattice, including continuous deposition and spontaneous desorption of part
Externí odkaz:
http://arxiv.org/abs/1011.2146
Unlike gas-phase reactions, chemical reactions taking place on interstellar dust grain surfaces cannot always be modeled by rate equations. Due to the small grain sizes and low flux,these reactions may exhibit large fluctuations and thus require stoc
Externí odkaz:
http://arxiv.org/abs/0907.0355
Autor:
Barzel, B., Biham, O.
Publikováno v:
J. Chem. Phys. 127, 144703 (2007)
Surfaces serve as highly efficient catalysts for a vast variety of chemical reactions. Typically, such surface reactions involve billions of molecules which diffuse and react over macroscopic areas. Therefore, stochastic fluctuations are negligible a
Externí odkaz:
http://arxiv.org/abs/0710.2263
Autor:
Barzel, B., Biham, O.
Publikováno v:
Astrophys.J.658:L37-L40,2007
Networks of reactions on dust grain surfaces play a crucial role in the chemistry of interstellar clouds, leading to the formation of molecular hydrogen in diffuse clouds as well as various organic molecules in dense molecular clouds. Due to the sub-
Externí odkaz:
http://arxiv.org/abs/0710.2250
Autor:
Vidali, G., Pirronello, V., Li, L., Roser, J., Manico, G., Mehl, R., Lederhendler, A., Perets, H. B., Brucato, J. R., Biham, O.
Publikováno v:
J. Phys. Chem. A, 2007, 111 (49), 12611
The study of the formation of molecular hydrogen on low temperature surfaces is of interest both because it allows to explore elementary steps in the heterogeneous catalysis of a simple molecule and because of the applications in astrochemistry. Here
Externí odkaz:
http://arxiv.org/abs/0708.1647
Publikováno v:
Phys. Rev. A 71, 042320 (2005)
An algebraic analysis of Grover's quantum search algorithm is presented for the case in which the initial state is an arbitrary pure quantum state of n qubits. This approach reveals the geometrical structure of the quantum search process, which turns
Externí odkaz:
http://arxiv.org/abs/quant-ph/0504149
The effect of unitary noise on the performance of Grover's quantum search algorithm is studied. This type of noise may result from tiny fluctuations and drift in the parameters of the (quantum) components performing the computation. The resulting ope
Externí odkaz:
http://arxiv.org/abs/quant-ph/0307142
Publikováno v:
Phys. Rev. A 68, 022326 (2003)
Grover's quantum search algorithm is analyzed for the case in which the initial state is an arbitrary pure quantum state $|\phi>$ of $n$ qubits. It is shown that the optimal time to perform the measurement is independent of $| \phi>$, namely, it is i
Externí odkaz:
http://arxiv.org/abs/quant-ph/0307141