Speaker
Description
Decoherence in quantum computing can be
reduced by using quantum gates with operation time shorter
than the coherence time of the system. Ultrafast single-qubit
gates have been demonstrated on various physical systems
but still remains slow for some cases with respect to subcycle
timescales where the operation time is shorter than the
characteristic timescale of the system, determined by the
inverse of relevant transition frequency between its states. In
order to develop such subcycle quantum gates, we found their
analytical expressions for general pulse shapes by applying a
unitary perturbation theory. We identified the corresponding
rotation as a functional of a given pulse. Whether a specific
operation is allowed within a subcycle driving scheme may be
answered using the expressions.
Details
Andrei Chuchalin, Korea Advanced Institute of Science and Technology, South Korea, https://www.kaist.ac.kr/en/
| Is this abstract from experiment? | No |
|---|---|
| Name of experiment and experimental site | N/A |
| Is the speaker for that presentation defined? | Yes |
| Internet talk | No |
