An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 3 Search : quantum walk
continuous-time quantum walk
  پویش ِ کو‌آنتومی با زمان ِ پیوسته   
puyeš-e kuântomi bâ zamân-e peyvasté

Fr.: marche quantique à temps continu   

A → quantum walk taking place entirely in the position space. Continuous-time quantum walk was introduced by E. Farhi & S. Gutmann (1998, Phys. Rev. A 58, 915).

continuous; → time; → quantum; → walk.

discrete-time quantum walk
  پویش ِ کو‌آنتومی با زمان ِ گسسته   
puyeš-e kuântomi bâ zamân-e gosasté

Fr.: marche quantique à temps discret   

A → quantum walk involving a probabilistic → operator that changes the direction while leaving the position fixed, and a shift operator that changes the position. Discrete-time quantum walk was introduced by J. Watrous (2001, Journal of Computer and System Sciences 62, 376)

discrete; → time; → quantum; → walk.

quantum walk
  پویش ِ کو‌آنتومی   
puyeš-e kuântomi

Fr.: marche quantique   

A generalization of the classical concept of → random walk using quantum mechanical laws such as the → superposition principle and → interference of quantum amplitudes. In the classical version the particle moves in the position space with a certain probability. In contrast, in the quantum counterpart the particle moves by exploring multiple possible paths simultaneously with the amplitudes corresponding to the influence of different paths. The concept of quantum walk is studied in two standard forms: → continuous-time quantum walk and → discrete-time quantum walk. Quantum walk was first introduced by Aharonov et al. (1993, Phys. Rev. A, 48, 1687).

continuous; → walk.