Several contemporary interpretations of quantum mechanics use the concept of information as a tool for addressing and explaining the quantum world. In the article, I focus on Zeilinger-Brukner's ...informational foundations of quantum theory (IFQT). I propose that with a phenomenological approach—which, unlike most of the contemporary interpretations of quantum mechanics, exceeds the mere dichotomy between realism and anti-realism—we can address the epistemological questions re-opened by IFQT and the parts of the interpretation that are recognized as problematic by its critics. After the phenomenological supplementation IFQT can provide both, ontic and epistemic answer to the question "Why quantum?" As we apply Husserl's concept of the world as our common objective ground to the IFQT explanation, we can make a justifiable step away from the solipsism/subjectivism, which is, according to the critics, the main problem of IFQT. Thus, I propose in conclusion, a phenomenological approach to quantum physics can offer a background for the much needed dialog between realists and anti-realists as well as for a comprehensive contemporary interpretation of the quantum world.
Zeilinger-Brukner's informational foundations of quantum theory, a theory based on Zeilinger's foundational principle for quantum mechanics that an elementary system carried one bit of information, ...explains seemingly unintuitive quantum behavior with simple theoretical framework. It is based on the notion that distinction between reality and information cannot be made, therefore they are the same. As the critics of informational foundations of quantum theory show, this antirealistic move captures the theory in tautology, where information only refers to itself, while the relationships outside the information with the help of which the nature of information would be defined are lost and the questions "Whose information? Information about what?" cannot be answered. The critic's solution is a return to realism, where the observer's effects on the information are neglected. We show that radical antirealism of informational foundations of quantum theory is not necessary and that the return to realism is not the only way forward. A comprehensive approach that exceeds mere realism and antirealism is also possible: we can consider both sources of the constraints on the information, those coming from the observer and those coming from the observed system/nature/reality. The information is always the observer's information about the observed. Such a comprehensive philosophical approach can still support the theoretical framework of informational foundations of quantum theory: If we take that one bit is the smallest amount of information in the form of which the observed reality can be grasped by the observer, we can say that an elementary system (grasped and defined as such by the observer) correlates to one bit of information. Our approach thus explains all the features of the quantum behavior explained by informational foundations of quantum theory: the wave function and its collapse, entanglement, complementarity and quantum randomness. However, it does so in a more comprehensive and intuitive way. The presented approach is close to Husserl's explanation of the relationship between reality and the knowledge we have about it, and to Bohr's personal explanation of quantum mechanics, the complexity of which has often been missed and simplified to mere antirealism. Our approach thus reconnects phenomenology with contemporary philosophy of science and introduces the comprehensive approach that exceeds mere realism and antirealism to the field of quantum theories with informational foundations, where such an approach has not been taken before. Quanta 2014; 3: 32–42.
Lewis Carroll based much of his nonsense humour and curious themes in Alice’s Adventures in Wonderland and Through the Looking-Glass on his expertise in logic and mathematics. Years after the books ...were written, Alice, under the guidance of new authors, is experiencing new adventures in different regions of Scienceland, from Quantumland to Computerland. Situations, characters and concepts from Carroll’s books on Alice are often reused in different scientific fields to illustrate scientific phenomena. Alice has become an archetype placeholder name for experimentalists in physics and cryptology. Carroll’s books on Alice have been adopted by the scientific community and it seems that, although it is characteristic for science to keep changing, Alice’s adventures in Scienceland are here to stay.
Velik dio nonsensnoga humora i začudnih tema u djelima Aličine pustolovine u Zemlji Čudesa i S onu stranu zrcala nadahnut je Carrollovim vrsnim poznavanjem logike i matematike. Godinama nakon ...nastanka spomenutih romana, u rukama novih autora, Alica doživljava nove pustolovine u raznim dijelovima Znanstvozemske: od Kvantozemske do Računalozemske. Situacije, likovi i pojmovi iz Carrollovih knjiga o Alici često se iznova rabe u raznim znanstvenim područjima u svrhu ilustriranja znanstvenih pojava. Sama Alica postala je arhetipskim imenom za ispitanike u fizici i kriptologiji. Iako su neprestane mijene jedna od odlika znanosti, jedna se stvar zacijelo neće promijeniti: junakinja Carrollovih romana, koje je znanstvena zajednica dobro prihvatila, i dalje će doživljavati pustolovine u Znanstvozemskoj.
In modern science, established by the scientific revolution in 16th and 17th century, the scientific observation process is understood as a process where the observer directly grasps Nature as the ...observed and scientific mathematical formulation is understood as a direct description of reality. Husserl criticized this lack of distinction between method and the object of investigation in modern science and emphasized the importance of phenomena in the observation process. A similar approach was used by Bohr in his interpretation of quantum experiments that seemed inexplicable from the modern science point of view. Many contemporary interpretations of quantum mechanics follow Bohr’s opposition to the realism of modern science. Among them is informational foundations of quantum theory (IFQT) that connects parts of his interpretation with the latest quantum experiments, but due to the complexity and individuality of Bohr’s interpretation, its philosophical consistency is mostly lost. In IFQT there is no direct connection between information and the observed. This ambiguous ontic status of information is often criticised, however, it can be solved by supplementation with Husserl’s philosophical understanding of the observation process. If Husserl’s definition of the relationship between the thing and the phenomenon is transmitted to the relationship between the observed and information in IFQT information can be understood as the direct answer to the question about the observed and thereby the observer’s only knowledge about it. This helps to reject the main criticism of IFQT and to additionally support its explanations of quantum phenomena.
PDF
