Motivated by the question what it is that makes quantum mechanics a holistic theory (if so), I try to define for general physical theories what we mean by 'holism'. I propose an operational criterion to decide whether or not a physical theory is holistic, namely: a physical theory is holistic if and only if some determination (measurement) of the global properties in the theory which can be det...

Motivated by the question what it is that makes quantum mechanics a holistic theory (if so), I try to define for general physical theories what we mean by 'holism'. For this purpose I propose an epistemological criterion to decide whether or not a physical theory is holistic, namely: a physical theory is holistic if and only if it is impossible in principle to infer the global properties, as as...

– The implications of quantum decoherence within the context of Bohmian mechanics are analyzed. By using the double–slit experiment as an example, we show that decoherence is not a sufficient mechanism to obtain the classical limit. Our results show that although decoherence produces an intensity pattern identical to the classical one (without interference), there still remain non–local (quantu...

Adsorbates or other defects greatly affect the physics and chemistry of surfaces. They cause, for example, scattering intensity peaks in between Bragg angles, giving rise to diffusive scattering. This phenomenon is characterized by an incoherence among particles scattered from different defects, and is well illustrated by He scattering from CO molecules adsorbed on the Pt~111! surface, for whic...

Many nonlinear quantum phenomena of intense laser-atom physics can be intuitively explained with the concept of trajectory. In this paper, Bohmian mechanics (BM) is introduced to study a multiphoton process of atoms interacting with the intense laser field: above-threshold ionization (ATI). Quantum trajectory of an atomic electron in intense laser field is obtained from the BohmNewton equation ...

In Bohmian mechanics the distribution |ψ|2 is regarded as the equilibrium distribution. We consider its uniqueness, finding that it is the unique equivariant distribution that is also a local functional of the wave function ψ.

In this investigation, we suggest a thought experiment to make a comparison between predictions of standard and Bohmian quantum mechanics. We consider a two-particle device at two various situations of the entangled and unentangled systems. In the first case, the two theories can predict different results at the individual level, while their statistical results are the same. In the other case, ...