Guolin Wu
Understanding the nature of reality has been a central theme in philosophy for centuries. Classical science presented a well-defined, deterministic view of reality as objects are governed by clear laws. However, quantum mechanics introduced a radically different perspective that suggests a “quantum reality” where particles exhibit wave-like behavior and defy classical intuitions. This chapter delves into the evolution of reality, exploring its characteristics in classical physics and its transformation in the face of quantum mechanics. One key aspect of quantum reality is the wave function, as in whether the wave function is of reality. The Copenhagen interpretation posits that the wave function is a probabilistic tool, rather than a description of the real state of microscopic particles. However, the fundamental principles of quantum control and the very objects it manipulates challenge this view. By directly or indirectly influencing the wave function, quantum control techniques provide compelling evidence for its quantum reality. The PBR theorem suggests that the wave function reflects a real physical state, not merely a mathematical tool. This chapter argues that the wave function is of the “reality of relative entity-structure”. In addition, the “quantum Cheshire cat” experiment further highlights the unusual nature of quantum reality, which shares some connections with the concept of “Tao” in Chinese Taoism that suggests that everything arises from a fundamental nothingness that itself is real. Quantum technology brings forth a “quantum technological reality” characterized by new properties and applications.
Routledge eBooks•Oct 8, 2025•0 citations