Hidden variable theories without non-local signalling and their experimental tests
نویسندگان
چکیده
منابع مشابه
Experimental Test of Local Hidden-Variable Theories
We have measured the linear polarization correlation between the two photons from the 7 S~-6 P~-6 So cascade of Hg . The results were used to evaluate Freedman's version of the Bell inequality, 5 ~0. Our result is 6~+=+0.046+0.014, in clear violation of the inequality and in excellent agreement with the quantum mechanical prediction, 6Q+ =+ 0.044 +0.007. An important feature of the experiment w...
متن کاملSymmetric extensions of quantum States and local hidden variable theories.
While all bipartite pure entangled states violate some Bell inequality, the relationship between entanglement and nonlocality for mixed quantum states is not well understood. We introduce a simple and efficient algorithmic approach for the problem of constructing local hidden variable theories for quantum states. The method is based on constructing a so-called symmetric quasiextension of the qu...
متن کاملExperimental tests of hidden variable theories from dBB to Stochastic Electrodynamics
The studies concerning the possible existence of a deterministic theory, of which quantum mechanics would be an approximation, date to the celebrated 1935 Einstein-PodolskyRosen paper. Since Bells proposal of 1964 various experiments were addressed to a general experimental test of local hidden variable theories, leading to strong indications favourable to Standard Quantum Mechanics. Neverthele...
متن کاملNon-Locality and Classical Communication of the Hidden Variable Theories
In all local realistic theories worked out till now, locality is considered as a basic assumption. Most people in the field consider the inconsistency between local realistic theories and quantum mechanics to be a result of non-local nature of quantum mechanics. In this paper, we derive Bell’s inequality for particles with instantaneous interactions, and show that the aforementioned contradicti...
متن کاملHidden variable theories and quantum nonlocality
We clarify the meaning of Bell’s theorem and its implications for the construction of hidden variable theories by considering an example system consisting of two entangled spin-1/2 particles. Using this example, we present a simplified version of Bell’s theorem and describe several hidden variable theories that agree with the predictions of quantum mechanics. These example theories clarify some...
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: Physics Letters A
سال: 1989
ISSN: 0375-9601
DOI: 10.1016/0375-9601(89)90940-7