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\(C^3\) - An integrated tool-set for control, calibration and characterization

The \(C^3\) software package provides tools to simulate and interact with experiments to perform common control and characterization tasks. Modules can be used individually or combined to achieve a certain goal. The main focus are three optimizations:

• \(C_1\) Open-loop optimal control: Given a model, find the pulse shapes which maximize fidelity with a target operation.

• \(C_2\) Closed-loop calibration: Given pulses, calibrate their parameters to maximize a figure of merit measured by the actual experiment, thus improving beyond the limits of a deficient model.

• \(C_3\) Model learning: Given control pulses and their experimental measurement outcome, optimize model parameters to best reproduce the results.

When combined in sequence, these three procedures represent a recipe for system characterization.

Note: This documentation is work-in-progress.

Contents:

• Introduction to \(C^3\) Toolset
  • The Building Blocks
    • Quantum Device Model
    • Classical Control Electronics
    • Instructions
  • Parameter Map
  • Experiments
  • Optimizers
  • Libraries
• Parameter handling
  • The opt_map
  • Optimizer scaling
  • Storing and reading
• Setup of a two-qubit chip with \(C^3\)
  • Imports
  • Model components
  • SPAM errors
  • Control signals
  • Gates-set and Parameter map
  • Instructions
  • The experiment
  • Simulation
• Dynamics
• Open-loop optimal control
• Entangling gate on two coupled qubits
  • Imports
  • Model components
  • Control signals
  • Gates-set and Parameter map
  • Instructions
  • The experiment
  • Dynamics
  • Open-loop optimal control
  • Results of the optimisation
• Simulated calibration
  • ORBIT - Single-length randomized benchmarking
  • Communication with the experiment
  • Optimization
  • Representation of the experiment within \(C^3\)
  • Algorithms
  • Analysis
• Model Learning
  • Imports
    • The Dataset
    • The Model for Model Learning
  • Define Constants
  • Model
  • Generator
  • Gateset
  • Experiment
    • Optimizer
    • Model Learning
  • Result of Model Learning
    • Visualisation & Analysis of Results
  • Open, Clean-up and Convert Logfiles
  • Summary of Logs
  • Plotting
  • Qubit Anharmonicity
  • Qubit Frequency
  • Goal Function
• Sensitivity Analysis
• Logs and current optimization status
• C3 Simulator as a backend for Qiskit Experiments
  • Define a basic Quantum circuit
  • Get the C3 Provider and Backend
    • Let’s view how the Qiskit Transpiler will convert the circuit
  • Run an ideal device simulation using C3
  • Run Simulation and verify results on Qiskit simulator
• API Documentation
  • C3objs
  • Experiment module
  • Model module
  • Parameter map
  • Main module
  • Module contents
  • Subpackages
    • Generator package
      • Submodules
      • Devices module
      • Generator module
      • Module contents
    • Libraries package
      • Algorithms module
      • Chip module
      • Constants module
      • Envelopes module
      • Estimators module
      • Fidelities module
      • Hamiltonians module
      • Sampling module
      • Tasks module
      • Module contents
    • Optimizers
      • C1 - Optimal control
      • C2 - Calibration
      • C3 - Characterization
      • Optimizer module
      • Sensitivity analysis
      • Module contents
    • Signal package
      • Submodules
      • Gates module
      • Pulse module
      • Module contents
    • Utilities package
      • Qutip utilities module
      • Tensorflow utilities module
      • Log Reader utilities module
      • Miscellaneous utilities module
      • Module contents
    • Qiskit modules for C3
      • C3 Backend module
      • C3 Provider module
      • C3 Job module
      • C3 Exceptions module
      • C3 Backend Utilities module
      • Module contents
    • C3obj
      • asdict
    • Quantity
      • add
      • asdict
      • get_limits
      • get_opt_value
      • get_value
      • numpy
      • set_limits
      • set_opt_value
      • set_value
      • subtract
    • hjson_decode
    • hjson_encode
    • jsonify_list
    • Experiment
      • asdict
      • compute_propagators
      • compute_states
      • enable_qasm
      • evaluate_legacy
      • evaluate_qasm
      • expect_oper
      • from_dict
      • get_VZ
      • get_perfect_gates
      • load_quick_setup
      • lookup_gate
      • populations
      • process
      • quick_setup
      • read_config
      • set_created_by
      • set_enable_store_unitaries
      • set_opt_gates
      • set_opt_gates_seq
      • set_prop_method
      • store_Udict
      • write_config
    • Model
      • asdict
      • blowup_excitations
      • cut_excitations
      • fromdict
      • get_Frame_Rotation
      • get_Hamiltonian
      • get_Hamiltonians
      • get_Lindbladians
      • get_dephasing_channel
      • get_ground_state
      • get_qubit_freqs
      • get_sparse_Hamiltonian
      • get_sparse_Hamiltonians
      • get_state_indeces
      • get_state_index
      • list_parameters
      • read_config
      • set_FR
      • set_components
      • set_dephasing_strength
      • set_dressed
      • set_lindbladian
      • set_max_excitations
      • set_tasks
      • update_Hamiltonians
      • update_Lindbladians
      • update_dressed
      • update_drift_eigen
      • update_model
      • write_config
    • ParameterMap
      • asdict
      • check_limits
      • fromdict
      • get_full_params
      • get_key_from_scaled_index
      • get_not_opt_params
      • get_opt_limits
      • get_opt_map
      • get_opt_units
      • get_parameter
      • get_parameter_dict
      • get_parameters
      • get_parameters_scaled
      • load_values
      • print_parameters
      • read_config
      • set_opt_map
      • set_parameters
      • set_parameters_scaled
      • store_values
      • str_parameters
      • update_parameters
      • write_config
    • run_cfg

Indices and tables

• Index

• Module Index

• Search Page