Quantum analysis of measurement results

E. Linke

Олександр Холод

The article aimed to search for and identify the criteria for forming an idea of the unit of analysis and the unit of measurement in quantum journalism (Kyushu).The research methodology involved the use of methods of three groups: general philosophical (the method of quantum monism; the ideas of realism; the concept of Unity); scientific-practical methods –observation, description and measurement; scientific theoretical methods –formalization, axiomatization, analysis and synthesis, deduction and induction, generalization, analogy, and abstraction.Results. Since today in the philosophical fields (metaphysics, nonclassical physics (quantum), and classical physics) there are no units of analysis and measurement of synergetic processes and phenomena in quantum journalism (quantum communication), further within holism and the author's concept of Unity it is proposed to create a new "1 hall", or "one holism". The range of analysis and measurement that form the unit "1 hall" should be considered the manifestations of the impact on the environment of a portion of energy (quantum) in the form of intensity and strength of changes that such energy (quantum) causes information flow.Conclusions. According to the results of the analytical review of existing ideas on measurement, it is appropriate to state ambivalent tendencies to identify the criteria for forming an idea of the unit of analysis and the unit of measurement in quantum journalism (more broadly -in the theory of quantum communication). On the one hand, measurement in quantum journalism is inexpedient. On the other hand, such a measurement is possible. From the standpoint of materialism, measurement in quantum journalism is possible thanks to digital indicators. From the point of view of metaphysics, measurement is possible taking into account the synergetic unity as a result of the combination of synergetic-convergent and cross-transmedia characteristics of information processes due to the unit "hall" (holism).Key words: quantum journalism, kyuzhur, measurement, unit of analysis, unit of measurement, identification of criteria.

Denis N. Yanyshev, B. A. Grishanin, Victor N. Zadkov

The concept of entangled quantum measurement was demonstrated by the example of the fundamental value of the experiment on quantum nondemolition measurement of a photon in a resonator with the use of a probe atom [1]. The quantum-information analysis of this experiment was performed. A mechanism of information transmission in the nondemolition measurement scheme in the case of the classical and quantum formalism was demonstrated. The results were shown to coincide in both cases. This is the result of copying the classical part of the initial quantum information attributed to a set of quantum object states.

Luis D. Zambrano Palma, Yusef Maleki, M. Suhail Zubairy

We study trade-off relations in information extraction from quantum systems subject to null-result weak measurements, where the absence of a detected photon continuously updates the system state. We present a detailed analysis of qubit and qutrit systems and investigate a general framework for a multilevel quantum system. We develop a dynamical characterization of null-result weak measurements that quantifies the information extracted over time, revealing the amount of the obtained information and also the rate of the information accumulation. The characterizations are obtained by examining the time-dependent evolution of the information theoretic quantities. More specifically, we consider Shannon entropy, mutual information, fidelity, and relative entropy to characterize the weak measurement dynamics. Our results provide an information theoretic analysis of the weak measurement process and highlight the dynamical nature of information extraction and reversibility in the weak measurement processes.

Daniel F. Walls, Gerard J Milburn

Biao Wu