Related Experiment Videos
Benchmarking quantum control methods on a 12-qubit system.
C Negrevergne1, T S Mahesh, C A Ryan
1Institute for Quantum Computing, University of Waterloo, Canada.
Physical Review Letters
|May 23, 2006
Summary
We benchmarked quantum control methods for up to 12 qubits, achieving a 12-qubit state. This demonstrates advanced control in nuclear magnetic resonance quantum information processors.
Area of Science:
- Quantum Information Science
- Quantum Computing
- Experimental Physics
Background:
- Quantum information processors require precise operational control methods.
- Scaling quantum systems to larger numbers of qubits presents significant challenges.
- Previous control methods have been limited in their application to larger qubit systems.
Purpose of the Study:
- To experimentally benchmark operational control methods for quantum information processors.
- To extend these methods to a 12-qubit system.
- To assess the accuracy and scalability of implemented control approaches.
Main Methods:
- Implementation of universal control in a 12-qubit Hilbert space.
- Utilizing two complementary control approaches.
- Employing liquid state nuclear magnetic resonance (NMR) quantum information processors.
Main Results:
- Successful experimental benchmark of operational control methods up to 12 qubits.
- Achievement of a 12-coherence state (12-qubit pseudopure cat state).
- Decoding into an 11-qubit plus one qutrit pseudopure state, despite decoherence.
Conclusions:
- The presented methods demonstrate effective universal control in large Hilbert spaces.
- The study highlights the potential and limitations of NMR quantum information processors for scalable quantum control.
- The successful manipulation of a 12-qubit state validates the experimental benchmark.