Welcome! Here you will find information about the latest, relativistic version of the transactional interpretation of quantum mechanics, 'RTI', blog posts, and an opportunity for informal discussion. The transactional interpretation (TI) is a new way of understanding what's behind the formalism of quantum physics. Here's an animation that gives a basic idea of the transactional … Continue reading Welcome!
My guest post on George Musser’s Sci Am Blog
A chat on TI with Jeffrey Mishlove
It's always a pleasure to talk with Jeffrey Mishlove. In this interview we talked about the Transactional Interpretation and related ideas: https://youtu.be/E6NNWdVCQZU
Quantum Paradoxes: To Resolve or To Acquiesce?
I gave a talk on the Transactional Interpretation and how it solves quantum paradoxes at the "Copenhagen and Beyond" Conference at Chapman University, CA (Oct. 18, 2019). The title was "Quantum Paradoxes: To Resolve or To Acquiesce?" It can be found here: https://digitalcommons.chapman.edu/cib-2019/cib/schedule/10/
Latest incarnation of the Schrödinger Cat Paradox forces a new view of quantum theory
A recent paper by Frauchiger and Renner has brought to light a serious problem with conventional approaches to quantum theory, by deriving a contradiction using those approaches. In FR Paradox Kastner 10.17.19 I argue that the paradox shows that quantum theory leads to absurdities and inconsistencies unless there is a clear physical criterion for 'measurement'. This … Continue reading Latest incarnation of the Schrödinger Cat Paradox forces a new view of quantum theory
The ‘Delayed Choice Quantum Eraser’ Neither Erases Nor Delays
The so-called 'quantum eraser' is an experiment that has prompted widespread confusion. In fact, it is nothing more than a photonic version of the EPR experiment. Nothing is erased, and there is no necessary retrocausation or 'temporal nonlocality,' beyond standard EPR correlations. I attempt to clear up the confusion in this paper, which has now … Continue reading The ‘Delayed Choice Quantum Eraser’ Neither Erases Nor Delays
Important New Book on Math Education
Bernice Kastner is a math educator whose innovative approach has helped to transform classrooms and enable many students to gain confidence and mastery in math. (She also happens to be my mother.) Her new book, The Role of Language in Teaching Children Math, is now out: https://www.austinmacauley.com/us/book/role-language-teaching-children-math From the publisher: "It can be difficult to … Continue reading Important New Book on Math Education
A critical look at popular ‘retrocausation’ claims. Do they hold up?
In this publication, I address popular uses of the term 'retrocausation' in connection with quantum theory, and find that there is much that needs to be corrected and clarified. Much of the discussion in the literature on this topic involves inconsistencies and equivocation about what retrocausation really is, and about what it can do. In … Continue reading A critical look at popular ‘retrocausation’ claims. Do they hold up?
Interview with Adam Alonzi on RTI, Schrodinger’s Cat, Time’s Arrow, Free Will
https://alonzipodcast.com/wp/2018/11/01/our-unseen-reality-the-relativistic-transactional-interpretation-of-quantum-mechanics-with-ruth-kastner/ Note correction: I should have said that a real photon goes FROM the emitter TO the absorber (said it backwards, LOL).
