Probing the Planck scale with quantum computation
11 hours ago
- #Quantum Computation
- #Planck Scale
- #Quantum Gravity
- The paper proposes using quantum computation to probe the Planck scale where general relativity and quantum mechanics are incompatible.
- It suggests that a quantum computer operating beyond the classical limit of one operation per Planck volume-time, specifically at a rate of $2^{491}$ m$^{-3}$ s$^{-1}$, can test quantum gravity theories.
- The research quantifies the relationship between logical qubit count and challenging classicality, arguing that 500 logical qubits are sufficient to reject theories confined to a laboratory.
- Operational costs of computation and communication, up to the scale of the observable universe, are considered, setting a constraint at 1600 logical qubits.
- Current commercial quantum computer developments are projected to exceed this 1600-qubit limit, potentially enabling empirical tests of the quantum-gravity standoff.