Weak central coherence theory, posits that persons on the autism spectrum have only limited ability to understand context, to 'see the big picture'. Coherence theory of truth, regards truth as coherence within some specified set of sentences, propositions or beliefs. Here you will find options to view and activate subscriptions, manage institutional settings and access options, access usage statistics, and more. Coherence theory (optics), the study of optical effects arising from partially coherent electromagnetic radiation. If you believe you should have access to that content, please contact your librarian.įor librarians and administrators, your personal account also provides access to institutional account management. The most we can say by way of a general definition is. The institutional subscription may not cover the content that you are trying to access. The term coherence in the phrase coherence theory of truth has never been very precisely defined. Oxford Academic is home to a wide variety of products.
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Click Sign in through your institution. Shibboleth / Open Athens technology is used to provide single sign-on between your institution’s website and Oxford Academic. This authentication occurs automatically, and it is not possible to sign out of an IP authenticated account.Ĭhoose this option to get remote access when outside your institution. Typically, access is provided across an institutional network to a range of IP addresses. This paper does not argue that the coherence theory should be the accepted theory about what truth. If you are a member of an institution with an active account, you may be able to access content in one of the following ways: However, the intensity correlation time increases with pump parameter above threshold, unlike that for the single-mode laser.Get help with access Institutional accessĪccess to content on Oxford Academic is often provided through institutional subscriptions and purchases. The pragmatic theory states that the truth of a statement can be defined in terms of the utility or desirability of accepting it. The two-time amplitude and intensity correlation functions of the light are calculated at line center, and are shown to be expressible in terms of the eigenfunctions and eigenvalues of a certain Schrödinger equation, in complete analogy with the theory of the single-mode laser. As a result of the mode competition, the relative intensity fluctuations do not die out in general as the working point of the laser is raised above threshold at line center, and the emitted light does not become fully coherent as in a conventional laser. 
It is shown that the competition of the two modes for the excited atomic population leads to negative correlations between their intensity fluctuations, whose magnitude depends on the detuning of the laser cavity from the atomic line center. Expressions for the fluctuations and correlations of the light emitted by a ring laser with counter-rotating traveling wave modes are derived theoretically.
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