On the stochastic mechanics of the free relativistic particle
On the stochastic mechanics of the free relativistic particle
复制标题
自由相对论粒子的随机力学
DOI:
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发表时间:
2001
期刊:
影响因子:
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通讯作者:
M. Pavon
中科院分区:
文献类型:
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作者:
M. Pavon
Given a positive energy solution of the Klein–Gordon equation, the motion of the free, spinless, relativistic particle is described in a fixed Lorentz frame by a Markov diffusion process with nonconstant diffusion coefficient. Proper time is an increasing stochastic process and we derive a probabilistic generalization of the equation (dτ)2=−(1/c2)dXν dXν. A random time-change transformation provides the bridge between the t and the τ domain. In the τ domain, we obtain an M4-valued Markov process with singular and constant diffusion coefficient. The square modulus of the Klein–Gordon solution is an invariant, nonintegrable density for this Markov process. It satisfies a relativistically covariant continuity equation.