Quantum Like Measurements in Biological Systems

Abstract

We identify a living system as one that, in order to survive, continual measurements on its surroundings (and on itself). We also define a conceptual observer that reads and interprets the output of the measurements. In a different discipline of science, quantum measurements are also associated with an observer who interprets reality through the collapse procedure. However, this time, the interpretation has nothing to do with survival skills. Nevertheless, since both disciplines belong to the science of Nature, we suspect they obey similar rules. Indeed, we demonstrate that both measurements follow one fundamental principle: they both correspond with re-coherent processes. Applying a quantum-like model, such as that of a spin glass neural network, we describe brain activity with the Hubert space concept in what we refer to as quantum-like measurements.