Raw Quantum Circuit JSON

Simple example

{
  "id":"simple_circuit",
  "instructions": [
    {
      "name":"h",
      "qubits":[0]
    },
    {
      "name":"cx",
      "qubits":[0,1]
    },
    {
      "name":"measure",
      "qubits":[0],
      "clbits":[0]
    },
    {
      "name":"measure",
      "qubits":[1],
      "clbits":[1]
    }
  ],
  "config":
  {
    "shots": 1024,
    "num_qubits":2,
    "num_clbits":2,
    "device":
    {
      "device_name":"CPU",
      "target_devices":[]
    }
  },
  "is_dynamic":false,
  "sending_to":[]
}

Classical Communications example

{
  "id":"sender_circuit",
  "instructions": [
    {
      "name":"h",
      "qubits":[0]
    },
    {
      "name":"measure",
      "qubits":[0],
      "clbits":[0]
    },
    {
      "name":"send",
      "clbits":[0],
      "circuits":["receiver_circuit"]
    }
  ],
  "config":
  {
    "shots": 1024,
    "num_qubits":1,
    "num_clbits":1,
    "device":
    {
      "device_name":"CPU",
      "target_devices":[]
    }
  },
  "is_dynamic":true,
  "sending_to":["receiver_circuit"]
}

{
  "id":"receiver_circuit",
  "instructions": [
    {
      "name":"recv",
      "clbits":[0],
      "circuits":["sender_circuit"]
    }
  ],
  "config":
  {
    "shots": 1024,
    "num_qubits":1,
    "num_clbits":1,
    "device":
    {
      "device_name":"CPU",
      "target_devices":[]
    }
  },
  "is_dynamic":true,
  "sending_to":[]
}

Quantum Communications example

Quantum communication is expressed in the IR through the gen_ent directive, which requests a shared entangled state on a communication qubit between the participating circuits (identified by a common tag). The high-level teledata and telegate protocols (see cunqa.qc_protocols) expand into a gen_ent directive followed by local gates, measurements, cif/endcif corrections and the classical send/recv directives shown above. The snippet below shows the core gen_ent directive shared between two circuits (the comm qubit is index 1, after the single data qubit 0):

{
  "id":"qsender_circuit",
  "instructions": [
    {
      "name":"h",
      "qubits":[0]
    },
    {
      "name":"gen_ent",
      "comm_qubit":1,
      "circuits":["qreceiver_circuit", "qsender_circuit"],
      "tag":"teledata"
    }
  ],
  "config":
  {
    "shots": 1024,
    "num_qubits":2,
    "num_clbits":2,
    "device":
    {
      "device_name":"CPU",
      "target_devices":[]
    }
  },
  "is_dynamic":true,
  "sending_to":["qreceiver_circuit"]
}

{
  "id":"qreceiver_circuit",
  "instructions": [
    {
      "name":"gen_ent",
      "comm_qubit":1,
      "circuits":["qsender_circuit", "qreceiver_circuit"],
      "tag":"teledata"
    }
  ],
  "config":
  {
    "shots": 1024,
    "num_qubits":2,
    "num_clbits":2,
    "device":
    {
      "device_name":"CPU",
      "target_devices":[]
    }
  },
  "is_dynamic":true,
  "sending_to":[]
}