Experimental Monte Carlo Quantum Process Certification
arXiv:1202.5196 · doi:10.1103/PhysRevLett.108.260506
Abstract
Experimental implementations of quantum information processing have now reached a level of sophistication where quantum process tomography is impractical. The number of experimental settings as well as the computational cost of the data post-processing now translates to days of effort to characterize even experiments with as few as 8 qubits. Recently a more practical approach to determine the fidelity of an experimental quantum process has been proposed, where the experimental data is compared directly to an ideal process using Monte Carlo sampling. Here we present an experimental implementation of this scheme in a circuit quantum electrodynamics setup to determine the fidelity of two qubit gates, such as the cphase and the cnot gate, and three qubit gates, such as the Toffoli gate and two sequential cphase gates.
References in corpus (19)
- Circuit Quantum Electrodynamics: Coherent Coupling of a Single Photon to a Cooper Pair Box
- Charge insensitive qubit design derived from the Cooper pair box
- Cavity quantum electrodynamics for superconducting electrical circuits: an architecture for quantum computation
- Quantum Teleportation is a Universal Computational Primitive
- Demonstration of Two-Qubit Algorithms with a Superconducting Quantum Processor
- Experimental Quantum State Tomography of Optical Fields and Ultrafast Statistical Sampling
- Unknown Quantum States and Operations, a Bayesian View
- Stabilizer Codes and Quantum Error Correction
- Direct Fidelity Estimation from Few Pauli Measurements
- Optimal, reliable estimation of quantum states
- Implementation of a Toffoli Gate with Superconducting Circuits
- Practical characterization of quantum devices without tomography
- Efficient Toffoli Gates Using Qudits
- Maximum Likelihood, Minimum Effort
- Quantum logic gates for coupled superconducting phase qubits
- Two-Qubit State Tomography using a Joint Dispersive Read-Out
- Control and Tomography of a Three Level Superconducting Artificial Atom
- Benchmarking a Teleportation Protocol realized in Superconducting Circuits
- Dynamics of dispersive single qubit read-out in circuit quantum electrodynamics
Cited by in corpus (13)
- Improving quantum gate fidelities by using a qubit to measure microwave pulse distortions
- Compressed sensing quantum process tomography for superconducting quantum gates
- Efficient experimental estimation of fidelity of linear optical quantum Toffoli gate
- Projected Least-Squares Quantum Process Tomography
- Robust and efficient in situ quantum control
- Minimum number of input states required for quantum gate characterization
- Optimal strategies for estimating the average fidelity of quantum gates
- Entanglement and Quantum Error Correction with Superconducting Qubits
- Process fidelity estimation of linear optical quantum CZ gate: A comparative study
- Efficient Experimental Verification of Quantum Gates with Local Operations
- Distinguishing between statistical and systematic errors in quantum process tomography
- Robustness of the concatenated quantum error-correction protocol against noise for channels affected by fluctuation
- Quantum certification of state set and unitary channel