No-Go Theorems and the Foundations of Quantum Physics

In the history of quantum physics several no-go theorems have been proved, and many of them have played a central role in the development of the theory, such as Bell’s or the Kochen–Specker theorem. A recent paper by F. Laudisa has raised reasonable doubts concerning the strategy followed in proving some of these results, since they rely on the standard framework of quantum mechanics, a theory that presents several ontological problems. The aim of this paper is twofold: on the one hand, I intend to reinforce Laudisa’s methodological point by critically discussing Malament’s theorem in the context of the philosophical foundation of quantum field theory; secondly, I rehabilitate Gisin’s theorem showing that Laudisa’s concerns do not apply to it.     

Corrections to first-order fuzzy logic

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Corrections to first-order fuzzy logic     

从形而上学到物理学

S.温伯格在其《场的量子理论》的第三卷中讲道:“在本书中我们从粒子开始然后进入波动方程,这并不是说粒子必然比场更基本。自1950年后的若干年来,一般认为自然规律以场的理论形式出现,我在本书中从粒子开始,不是因为它们更基本,而是因为我们对粒子的所知更确定,更能从量子力学和相对论中直接推导出来。……事实上,后来真有人反对把量子场看做最基本的,新的理论可能不是场或粒子的理论,或者是很不一样的东西,比如弦。”[1]也就是说这里存在一个“世界的本原是粒子、场还是弦?”的问题。可见,虽然物理学早已从古希腊的自然哲学分化出来,并经…     

Foundations of Probability

The foundations of probability are viewed through the lens of the subjectivist interpretation. This article surveys conditional probability, arguments for probabilism, probability dynamics, and the evidential and subjective interpretations of probability.