46 citations · 259 across the 20 of their papers we have counts for
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cond-mat.other2004
Need, Greed and Noise: Competing Strategies in a Trading Model
R. Donangelo, A. Hansen, K. Sneppen +1
We study an economic model where agents trade a variety of products by using one of three competing rules: "need", "greed" and "noise". We find that the optimal strategy for any ag…
quant-ph2004
Generalized Quantum Walk in Momentum Space
A. Romanelli, A. Auyuanet, R. Siri +2
We consider a new model of quantum walk on a one-dimensional momentum space that includes both discrete jumps and continuous drift. Its time evolution has two stages; a Markov diff…
quant-ph2004
Decoherence in the quantum walk on the line
A. Romanelli, R. Siri, G. Abal +2
We investigate the quantum walk on the line when decoherences are introduced either through simultaneous measurements of the chirality and particle position, or as a result of brok…