Exploiting Quantum Teleportation in Quantum Circuit Mapping
Sprache des Vortragstitels:
Englisch
Original Tagungtitel:
International Workshop on Quantum Compilation (IWQC)
Sprache des Tagungstitel:
Englisch
Original Kurzfassung:
Quantum computers are constantly growing in their number of
qubits, but continue to suffer from restrictions such as the limited pairs of qubits that may interact with each other. Thus far,
this problem is addressed by mapping and moving qubits to suitable positions for the interaction (known as quantum circuit mapping). However, this movement requires additional gates to be incorporated into the circuit, whose number should be kept as small
as possible since each gate increases the likelihood of errors and
decoherence. State-of-the-art mapping methods utilize swapping
and bridging to move the qubits along the static paths of the coupling map?solving this problem without exploiting all means the
quantum domain has to offer. In this paper, we propose to additionally exploit quantum teleportation as a possible complementary method. Quantum teleportation conceptually allows to move
the state of a qubit over arbitrary long distances with constant
overhead?providing the potential of determining cheaper mappings. The potential is demonstrated by a case study on the IBM Q
Tokyo architecture which already shows promising improvements.
With the emergence of larger quantum computing architectures,
quantum teleportation will become more effective in generating
cheaper mappings.
Forschungs-