Quantum Gravity’s Time Problem

Quantum Gravity’s Time Problem

12/31/2016

link

https://www.quantamagazine.org/20161201-quantum-gravitys-time-problem/

summary

This article discusses the concept of time in the context of quantum gravity. It explores the ongoing search for a theory that harmoniously combines quantum mechanics and general relativity. The article highlights the challenges that arise when trying to reconcile these two fundamental theories, particularly when it comes to the definition and understanding of time. It delves into various approaches and theories proposed by physicists, such as loop quantum gravity and string theory, that attempt to address the so-called 'time problem' in quantum gravity. The article also explores the potential implications of finding a resolution to this problem, including the possibility of shedding light on the nature of the universe itself.

tags

quantum gravity ꞏ time problem ꞏ theoretical physics ꞏ quantum mechanics ꞏ general relativity ꞏ spacetime ꞏ fundamental physics ꞏ quantum field theory ꞏ quantum gravity theories ꞏ cosmology ꞏ black holes ꞏ quantum effects ꞏ time dilation ꞏ space-time structure ꞏ quantum foam ꞏ quantum fluctuations ꞏ quantum tunneling ꞏ planck scale ꞏ quantum spacetime ꞏ quantum gravity phenomenology ꞏ quantum gravity models ꞏ theory of everything ꞏ quantum gravity research ꞏ quantum gravity paradoxes ꞏ quantum gravity puzzles ꞏ quantum gravity simulations ꞏ quantum geometry ꞏ quantum entanglement ꞏ quantum information ꞏ quantum computation ꞏ quantum measurement ꞏ quantum states ꞏ quantum particles ꞏ quantum principles ꞏ quantum phenomena ꞏ quantum mechanics principles ꞏ quantum dynamics ꞏ quantum fields ꞏ quantum information theory ꞏ holography ꞏ quantum gravity experiments ꞏ quantum gravity observations ꞏ quantum gravity predictions ꞏ quantum gravity implications ꞏ quantum gravity interpretations ꞏ quantum gravity philosophy ꞏ quantum gravity controversies