Building Quantum Wires: The Long and the Short of It

As quantum computing moves closer to reality the need for basic architectural studies becomes more pressing. Quantum wires, which transport quantum data, will be a fundamental component in all anticipated silicon quantum architectures. In this paper, we introduce a quantum wire architecture based upon quantum teleportation. We compare this teleportation channel with the traditional approach to transporting quantum data, which we refer to as the swapping channel. We characterize the latency and bandwidth of these two alternatives in a device-independent way and describe how the advanced architecture of the teleportation channel overcomes a basic limit to the maximum communication distance of the swapping channel. In addition, we discover a fundamental tension between the scale of quantum effects and the scale of the classical logic needed to control them. This “pitch-matching” problem imposes constraints on minimum wire lengths and wire intersections, which in turn imply a sparsely...

• Type: Conference
• Year: 2003
• Where: ISCA
• Authors: Mark Oskin, Frederic T. Chong, Isaac L. Chuang, John Kubiatowicz
• Keywords: Hardware, ISCA 2003, Quantum, Quantum Data, Quantum Wire