Abstract
Mapping the system evolution of a two-state system allows the determination of the effective system Hamiltonian directly. We show how this can be achieved even if the system is decohering appreciably over the observation time. A method to include various decoherence models is given and the limits of this technique are explored. This technique is applicable both to the problem of calibrating a control Hamiltonian for quantum computing applications and for precision experiments in two-state quantum systems. The accuracy of the results obtained with this technique are ultimately limited by the validity of the decoherence model used.
| Original language | English |
|---|---|
| Article number | 062333 |
| Pages (from-to) | - |
| Number of pages | 8 |
| Journal | Physical Review A |
| Volume | 73 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Jun 2006 |
Fingerprint
Keywords
- decoherence
- two-state Hamiltonian
- quantum computing
Cite this
}
Identifying a two-state Hamiltonian in the presence of decoherence. / Cole, Jared H.; Greentree, Andrew D.; Oi, Daniel K. L.; Schirmer, Sonia G.; Wellard, Cameron J.; Hollenberg, Lloyd C. L.
In: Physical Review A, Vol. 73, No. 6, 062333, 06.2006, p. -.Research output: Contribution to journal › Article
TY - JOUR
T1 - Identifying a two-state Hamiltonian in the presence of decoherence
AU - Cole, Jared H.
AU - Greentree, Andrew D.
AU - Oi, Daniel K. L.
AU - Schirmer, Sonia G.
AU - Wellard, Cameron J.
AU - Hollenberg, Lloyd C. L.
PY - 2006/6
Y1 - 2006/6
N2 - Mapping the system evolution of a two-state system allows the determination of the effective system Hamiltonian directly. We show how this can be achieved even if the system is decohering appreciably over the observation time. A method to include various decoherence models is given and the limits of this technique are explored. This technique is applicable both to the problem of calibrating a control Hamiltonian for quantum computing applications and for precision experiments in two-state quantum systems. The accuracy of the results obtained with this technique are ultimately limited by the validity of the decoherence model used.
AB - Mapping the system evolution of a two-state system allows the determination of the effective system Hamiltonian directly. We show how this can be achieved even if the system is decohering appreciably over the observation time. A method to include various decoherence models is given and the limits of this technique are explored. This technique is applicable both to the problem of calibrating a control Hamiltonian for quantum computing applications and for precision experiments in two-state quantum systems. The accuracy of the results obtained with this technique are ultimately limited by the validity of the decoherence model used.
KW - decoherence
KW - two-state Hamiltonian
KW - quantum computing
U2 - 10.1103/PhysRevA.73.062333
DO - 10.1103/PhysRevA.73.062333
M3 - Article
VL - 73
SP - -
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
SN - 1050-2947
IS - 6
M1 - 062333
ER -