Remove unnecessary SWAP in qrecv - wasting quantum resources #4
Description
Description
File: netqmpi/sdk/primitives/p2p/p2p.py (lines ~78-84)
Problem
After applying the X/Z corrections in teleportation, epr already contains the teleported state. The SWAP to a new qubit q is completely unnecessary:
q = Qubit(communicator.connection)
epr.cnot(q)
q.cnot(epr)
epr.cnot(q)
qubits.append(q)This wastes 1 qubit + 3 quantum gates per received qubit.
Solution
qubits.append(epr)Impact
- Severity: High
- Savings: 1 qubit + 3 gates per received qubit
- Affects: All receive operations