Time Optimal Unitary Operations

Alberto Carlini; Akio Hosoya; Tatsuhiko Koike; Yosuke Okudaira

doi:10.1103/PhysRevA.75.042308

Time Optimal Unitary Operations

Quantum Physics 2014-12-01 v4

Authors: Alberto Carlini , Akio Hosoya , Tatsuhiko Koike , Yosuke Okudaira

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Abstract

Extending our previous work on time optimal quantum state evolution, we formulate a variational principle for the time optimal unitary operation, which has direct relevance to quantum computation. We demonstrate our method with three examples, i.e. the swap of qubits, the quantum Fourier transform and the entangler gate, by choosing a two-qubit anisotropic Heisenberg model.

Keywords

quantum hamiltonian simulation and dynamics variational methods in physics

Cite

@article{arxiv.quant-ph/0608039,
  title  = {Time Optimal Unitary Operations},
  author = {Alberto Carlini and Akio Hosoya and Tatsuhiko Koike and Yosuke Okudaira},
  journal= {arXiv preprint arXiv:quant-ph/0608039},
  year   = {2014}
}

Comments

4 pages, 1 figure. References added

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