Action-noise-assisted quantum control Articles uri icon

publication date

  • September 2017

start page

  • 033417-1

end page

  • 033417-6

issue

  • 3

volume

  • 96

International Standard Serial Number (ISSN)

  • 2469-9926

Electronic International Standard Serial Number (EISSN)

  • 2469-9934

abstract

  • We study the effect of action noise on state-to-state control protocols. Action noise creates dephasing in the instantaneous eigenbasis of the Hamiltonian and hampers the fidelity of the final state with respect to the target state. We find that for shorter protocols the noise more strongly influences the dynamics and degrades fidelity. We suggest improving the fidelity by inducing stronger dephasing rates along the process. The effects of action noise on the dynamics and its manipulation is described for a general Hamiltonian and is then studied by examples.