Schrödinger's Cat and the Measurement Problem: Resolution via the Informational Action Principle

Jeffrey Bub

Jaykov Foukzon, Alex Potapov, Менькова Елена Романовна +1 more

A new quantum mechanical formalism based on the probability representation of quantum states is proposed. This paper in particular deals with the special case of the measurement problem, known as Schrödinger's cat paradox. We pointed out that Schrödinger's cat demands to reconcile Born's rule. Using new quantum mechanical formalism we find the collapsed state of the Schrödinger's cat always shows definite and predictable outcomes even if cat also consists of a superposition cat  c 1 live cat  c 2 death cat |c 1 | 2  |c 2 | 2  1. Using new quantum mechanical formalism the EPRB-paradox is considered successfully. We find that the EPRB-paradox can be resolved by nonprincipal and convenient relaxing of the Einstein's locality principle. Content Part I.Schrödinger's cat paradox resolution using GRW collapse model. Von Neumann measurement postulate revisited.

Sara Skouri

We introduce the Principle of Wave-Particle Oscillation, which identifies a critical mass threshold m_c = h-bar / (omega Delta x_th^2) that separates quantum from classical behavior. This threshold emerges from the competition between quantum zero-point fluctuations and thermal or environmental noise in harmonic oscillators. Systems with mass below m_c maintain quantum coherence; those above m_c are irreversibly classical. Applying this principle to Schrödinger's cat resolves the paradox: the cat's mass far exceeds m_c, so its wavefunction collapses instantly—the cat is never in superposition. The principle unifies classical and quantum harmonic oscillators under a single framework and makes testable predictions: critical slowing down, a 1/f^1.5 power spectrum, and Tracy-Widom statistics near the quantum-classical boundary. This work provides a physical, observer-independent resolution to the measurement problem and establishes a fundamental limit for quantum coherence.

修三 小川

Art Hobson

This paper reviews and suggests a resolution of the problem of definite outcomes of measurement. This problem, also known as ‘Schrodinger’s cat’, has long posed an apparent paradox because the state resulting from a measurement appears to be a quantum superposition in which the detector is in two macroscopically distinct states (alive and dead in the case of the cat) simultaneously. Many alternative interpretations of the quantum mathematical formalism, and several alternative modifications of the theory, have been proposed to resolve this problem, but no consensus has formed supporting any one of them. Applying standard quantum theory to the measurement state, together with the analysis and results of decades of nonlocality experiments with pairs of entangled systems, this paper shows the entangled measurement state is not a paradoxical macroscopic superposition of states. It is instead a phase-dependent superposition of correlations between states of the subsystems. Thus Schrodinger’s cat is a non-paradoxical ‘macroscopic correlation’ in which one of the two correlated systems happens to be a detector. This insight resolves the problem of definite outcomes but it does not entirely resolve the measurement problem because the entangled state is still reversible.