Quantum search algorithm as an open system
نویسندگان
چکیده
منابع مشابه
Quantum search algorithm as an open system
We study the quantum search algorithm as an open system. More specifically, we analyze the responses of that algorithm to an external monochromatic field, and to the decoherences introduced by the measurement process. We find that the search algorithm is robust with respect to many external interactions.
متن کاملAn alternate algorithm for directed quantum search
We present a new algorithm for directed quantum search, which is superior to the Phase-π/3 search algorithm [5] in several aspects. In particular, our algorithm does not require complex phases and achieves the optimal reduction in error probability, from ǫ to ǫ2q+1, for all positive integer values q of oracle queries. (The Phase-π/3 algorithm, requires q = (3n − 1)/2, with n a positive integer....
متن کاملMinisuperspace as a Quantum Open System
We trace the development of ideas on dissipative processes in chaotic cosmology and on minisuperspace quantum cosmology from the time Misner proposed them to current research. We show 1) how the effect of quantum processes like particle creation in the early universe can address the issues of the isotropy and homogeneity of the observed universe, 2) how viewing minisuperspace as a quantum open ...
متن کاملQuantum algorithm for simulating the dynamics of an open quantum system
In the study of open quantum systems, one typically obtains the decoherence dynamics by solving a master equation. The master equation is derived using knowledge of some basic properties of the system, the environment, and their interaction: One basically needs to know the operators through which the system couples to the environment and the spectral density of the environment. For a large syst...
متن کاملAN EFFICIENT CHARGED SYSTEM SEARCH USING CHAOS
The Charged System Search (CSS) is combined to chaos to solve mathematical global optimization problems. The CSS is a recently developed meta-heuristic optimization technique inspired by the governing laws of physics and mechanics. The present study introduces chaos into the CSS in order to increase its global search mobility for a better global optimization. Nine chaos-based CSS (CCSS) methods...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physica A: Statistical Mechanics and its Applications
سال: 2007
ISSN: 0378-4371
DOI: 10.1016/j.physa.2006.09.005