منابع مشابه
FOR Quantum asymmetry between time and space
with A= θ/4, B = (r − 1)θ/2N and C = rθ/2N . Note that k represents the number of steps in time, each of duration δt= σt/ √ N , from the position of the maxima. We want the approximation to be valid for a finite range around the maxima in the limit N→∞, and so we need k, and thus r, to vary over the range from 1 to order √ N . It follows that we can use the approximations cos(B)≈ 1, cos(C)≈ 1, ...
متن کاملQuantum asymmetry between time and space.
An asymmetry exists between time and space in the sense that physical systems inevitably evolve over time, whereas there is no corresponding ubiquitous translation over space. The asymmetry, which is presumed to be elemental, is represented by equations of motion and conservation laws that operate differently over time and space. If, however, the asymmetry was found to be due to deeper causes, ...
متن کاملQuantum Theory and Time Asymmetry
The relation between quantum measurement and thermodynam-ically irreversible processes is investigated. The reduction of the state vector is fundamentally asymmetric in time and shows an observer-relatedness which may explain the double interpretation of the state vector as a representation of physical states as well as of information about them. The concept of relevance being used in all stati...
متن کاملTime Symmetry and Asymmetry in Quantum Mechanics and Quantum Cosmology
All of these time asymmetries could arise from time-symmetric dynamical laws solved with time-asymmetric boundary conditions. The thermodynamic arrow of time, for example, is implied by an initial condition in which the progenitors of today’s approximately isolated systems were all far from equilibrium at an initial time. The CP arrow of time could arise as a spontaneously broken symmetry of th...
متن کاملFundamental time-asymmetry from nontrivial space topology
It is argued that a fundamental time-asymmetry (arrow-of-time) could arise from the global structure of the space manifold. The proposed mechanism relies on the CPT anomaly of chiral gauge theory defined over a nonsimply connected space manifold. The resulting time-asymmetry is illustrated by a simple thought experiment. This effect could, in principle, play a role in determining the initial co...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
سال: 2016
ISSN: 1364-5021,1471-2946
DOI: 10.1098/rspa.2015.0670