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changelog.md

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2023.09.07

  • introduced QuantumOperators and new hierarchy with: Gate, Measurement and Reset.
  • marked Register as deprecated in favor of RegisterV2
  • fix: size of TraspiledCircuit derived from the pre-transpilation circuit
  • fix: add support for unitary() gate
  • query: ungoverened composition disable if one of the two circuit is unknown size
  • feat: add mayFollowDirectly in the quantum data flow

2023.08.29

  • GateSpecification, BitUse, Circuit with SubCircuit added to the qlint library

2023.03.17

  • improve the efficiency of isAppliedAfter in the Gate class by checking that the two gates happen in the same file.

2023.03.13

  • added QubitUsedInteger abstraction to keep track of each access to a qubit, the connection is made vai the Gate. It also tracks the register of generic gate e.g. qc.h(0) in case they have only a single quantum register.

2023.03.07

  • fix missing gates crx and cry in the Gate class
  • improved the isAppliedAfter in the Gate class to remove false positives when the circuit is re-initialized during the path connecting the two gates.

2023.03.07

  • added the getVar() function to the register class to get the variable name of the register.
  • added the QubitUsed abstraction to keep track of each access to a qubit, considering also the register it belongs to.

2023.03.03

  • refactoring model: java style method calls
  • refactoring of register to share part of it.
  • removed GateQuantumOperation, substituted with a predicate isMeasurement() on a general gate.

2023.02.28

  • refactoring of the Gate class. Remove the tracking of the for loop.

2023.02.21

  • improve the efficiency of get_a_target_qubit() of the gate class (remove extra QuantumCircuit variable)
  • improved the precision of get_a_target_qubit() of the gate class to account also for qubits which are operated on in a loop (e.g. qc.h(i)).

2023.02.20

  • added is_subcircuit() method to Circuit class (by checking if it flows to the compose() or append() method of another circuit object)
  • improved get_total_num_qubits() and get_total_num_bits() methods of Circuit class (by considering also the registers added add_register() method)
  • in Circuit refactored get_num_qubits_with_integers() and get_num_bits_with_integers() methods to return the static size of the circuit (i.e. QuantumCircuit(2,2) or n = 7; m = 2, QuantumCircuit(n, m)).
  • improved get_num_bits() and get_num_qubits() methods of Register class (by considering also local flows of integer variables, e.g. x = 5; QuantumRegister(x))