Physics – Quantum Physics
Scientific paper
2006-09-22
Phys. Rev. Lett. 98, 090401 (2007)
Physics
Quantum Physics
4 pages, 1 figure. v2 typos corrected
Scientific paper
10.1103/PhysRevLett.98.090401
We develop generalized bounds for quantum single-parameter estimation problems for which the coupling to the parameter is described by intrinsic multi-system interactions. For a Hamiltonian with $k$-system parameter-sensitive terms, the quantum limit scales as $1/N^k$ where $N$ is the number of systems. These quantum limits remain valid when the Hamiltonian is augmented by any parameter independent interaction among the systems and when adaptive measurements via parameter-independent coupling to ancillas are allowed.
Boixo Sergio
Caves Carlton M.
Flammia Steven T.
Geremia JM
No associations
LandOfFree
Generalized Limits for Single-Parameter Quantum Estimation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Generalized Limits for Single-Parameter Quantum Estimation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Generalized Limits for Single-Parameter Quantum Estimation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-659718