Quantum Computing · score 0.00 · 46 entries · last updated 5/20/2026, 2:17:12 AM

Time Emerges in Quantum Gravity

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The Cosine Problem in Quantum Gravity is a Feature, Not a Bug: Path Integrals Resolve the Problem of Time

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The Cosine Problem in Quantum Gravity is a Feature, Not a Bug: Path Integrals Resolve the Problem of Time

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The Cosine Problem in Quantum Gravity is a Feature, Not a Bug: Path Integrals Resolve the Problem of Time

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arxiv5/19/2026, 2:38:14 AM

The Cosine Problem in Quantum Gravity is a Feature, Not a Bug: Path Integrals Resolve the Problem of Time

Diaz and Perez use the path integral formulation to show that time evolution is an emergent phenomenon in timeless closed quantum systems — a tractable model for generally covariant theories like quantum gravity. Their key result is that the so-called "cosine problem" (transition…