Ultrafast Gates for Single Atomic Qubits
arXiv:1005.4144 · doi:10.1103/PhysRevLett.105.090502
Abstract
We demonstrate single qubit operations on a trapped atom hyperfine qubit using a single ultrafast pulse from a mode-locked laser. We shape the pulse from the laser and perform a pi rotation of the qubit in less than 50 ps with a population transfer exceeding 99% and negligible effects from spontaneous emission or ac Stark shifts. The gate time is significantly shorter than the period of atomic motion in the trap (Rabi frequency / trap frequency > 10000), demonstrating that this interaction takes place deep within the strong excitation regime.
10 pages, 3 figures
References in corpus (6)
- Fault-Tolerant Quantum Dynamical Decoupling
- Quantum Teleportation Between Distant Matter Qubits
- Manipulation and Detection of a Trapped Yb+ Ion Hyperfine Qubit
- Fast and robust two-qubit gates for scalable ion trap quantum computing
- Errors in trapped-ion quantum gates due to spontaneous photon scattering
- Ultrafast control of donor-bound electron spins with single detuned optical pulses