In a groundbreaking new theory, researchers at University College London have proposed a novel perspective suggesting that spacetime may remain classical and unaffected by quantum mechanics.
Quantum mechanics and Einstein’s general theory of relativity have long been at odds with each other, and the unification of these two pillars of modern physics has remained an elusive quest.
The postquantum theory eliminates the notorious “measurement postulate” in quantum theory that posits measurements collapse quantum superpositions into definite states and replaces it with a concept where quantum superpositions naturally localize through their interaction with classical spacetime.
The researchers propose a groundbreaking experiment aimed at detecting fluctuations in mass over time, which has far-reaching implications for our understanding of gravity and quantum mechanics.
The postquantum theory offers a unique perspective, suggesting that the fundamental breakdown in predictability inherent to spacetime allows for information to be destroyed and resolving the black hole information paradox.
Another experimental proposal aims to verify the quantum nature of spacetime through a phenomenon called “gravitationally mediated entanglement.”
The postquantum theory has led to the elimination of the measurement postulate, and the proposed experiments seek to find the elusive balance shedding light on whether spacetime remains classical or succumbs to quantum mechanics at microscopic scales.
The core tenet of this theory is that spacetime remains classical, not subject to the constraints of quantum theory, and instead, quantum theory is tweaked to account for intrinsic unpredictability mediated by spacetime.
The postquantum theory challenges the status quo and offers a new perspective aiming to reconcile quantum mechanics and general relativity, and holds immense promise in advancing our understanding of the fundamental laws of nature.
The proposed experiments aim to detect random fluctuations in mass and verify the quantum nature of spacetime, and serve as a critical juncture in the ongoing debate between competing theories of quantum gravity.