Fast quantum computation at arbitrarily low energy

@article{Jordan2017FastQC,
  title={Fast quantum computation at arbitrarily low energy},
  author={Stephen P. Jordan},
  journal={Physical Review A},
  year={2017},
  volume={95},
  pages={032305}
}
  • S. Jordan
  • Published 2017
  • Physics
  • Physical Review A
One version of the energy-time uncertainty principle states that the minimum time $T_{\perp}$ for a quantum system to evolve from a given state to any orthogonal state is $h/(4 \Delta E)$ where $\Delta E$ is the energy uncertainty. A related bound called the Margolus-Levitin theorem states that $T_{\perp} \geq h/(2 E)$ where E is the expectation value of energy and the ground energy is taken to be zero. Many subsequent works have interpreted $T_{\perp}$ as defining a minimal time for an… Expand

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