منابع مشابه
v 3 9 N ov 1 99 3 CTP # 2243
The quantization of a massless conformally coupled scalar field on the 2+1 dimensional Anti de Sitter black hole background is presented. The Green’s function is calculated, using the fact that the black hole is Anti de Sitter space with points identified, and taking into account the fact that the black hole spacetime is not globally hyperbolic. It is shown that the Green’s function calculated ...
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0 9 r e v i s i o n : 1 9 9 3 0 8 2 9 m o d i f i e d : 1 9 9 3 0 8 2 9 Non-existence of Universal Orders in Many Cardinals Menachem Kojman and Saharon Shelah† Department of Mathematics, Hebrew University 91904 Jerusalem, Israel ABSTRACT Our theme is that not every interesting question in set theory is independent of ZFC. We give an example of a first order theory T with countable D(T ) which c...
متن کامل9 v 3 1 5 N ov 1 99 9 Fisher information in quantum statistics
Braunstein and Caves (1994) proposed to use Helstrom’s quantum information number to define, meaningfully, a metric on the set of all possible states of a given quantum system. They showed that the quantum information is nothing else than the maximal Fisher information in a measurement of the quantum system, maximized over all possible measurements. Combining this fact with classical statistica...
متن کامل0 v 3 9 N ov 1 99 9 Noise in Grover ’ s Quantum Search Algorithm
Grover's quantum algorithm improves any classical search algorithm. We show how random Gaussian noise at each step of the algorithm can be modelled easily because of the exact recursion formulas available for computing the quantum amplitude in Grover's algorithm. We study the algorithm's intrinsic robustess when no quantum correction codes are used, and evaluate how much noise the algorithm can...
متن کامل/ 99 02 13 3 v 1 9 F eb 1 99 9 Kolmogorov Complexity , Cosmic Microwave
The information theory approach is suggested to the Cosmic Microwave Background (CMB) problem for negatively curved homogeneous and isotropic Universe. Namely, the Kolmogorov complexity of anisotropy of spots in CMB sky maps is proposed as a new descriptor for revealing crucial cosmological information, particularly on the curvature of the Universe. Such profound descriptor can be especially va...
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ژورنال
عنوان ژورنال: Philologus
سال: 1877
ISSN: 2196-7008,0031-7985
DOI: 10.1524/phil.1877.36.14.232