A Quantum Computer Architecture using Nonlocal Interactions

Abstract

Several authors have described the basic requirements essential to build a scalable quantum computer. Because many physical implementation schemes for quantum computing rely on nearest neighbor interactions, there is a hidden quantum communication overhead to connect distant nodes of the computer. In this paper we propose a physical solution to this problem which, together with the key building blocks, provides a pathway to a scalable quantum architecture using nonlocal interactions. Our solution involves the concept of a quantum bus that acts as a refreshable entanglement resource to connect distant memory nodes providing an architectural concept for quantum computers analogous to the von Neumann architecture for classical computers.

4 pages, 2 figures, Slight modifications to satisfy referee, 2 new references, modified acknowledgement. This draft to appear in PRA Rapid Communications

References in corpus (10)

• Mixed State Entanglement and Quantum Error Correction
• The Physical Implementation of Quantum Computation
• Quantum Teleportation is a Universal Computational Primitive
• Fast quantum gates for neutral atoms
• Quantum privacy amplification and the security of quantum cryptography over noisy channels
• Reliable Quantum Computers
• Quantum repeaters based on entanglement purification
• A Multiparticle Generalization of Entanglement Swapping
• Quantum Logic Gates in Optical Lattices
• Optimal local implementation of non-local quantum gates

Cited by in corpus (17)

• Controlled Collisions for Multiparticle Entanglement of Optically Trapped Atoms
• Synthesis of Quantum Logic Circuits
• Circuit QED using a semiconductor double quantum dot
• General bounds for sender-receiver capacities in multipoint quantum communications
• Certifying the building blocks of quantum computers from Bell's theorem
• Entanglement Dynamics in 1D Quantum Cellular Automata
• Experimental Demonstration of Non-local Controlled-Unitary Quantum Gates Using a Five-qubit Quantum Computer
• Josephson junction qubit network with current-controlled interaction
• Quantum Computer Architecture: Towards Full-Stack Quantum Accelerators
• Theoretical analysis of perfect quantum state transfer with superconducting qubits
• A quantum-walk-inspired adiabatic algorithm for graph isomorphism
• Linear and logarithmic time compositions of quantum many-body operators
• Anonymous broadcasting of classical information with a continuous-variable topological quantum code
• Bose - Einstein Condensate Superfluid-Mott Insulator Transition in an Optical Lattice
• Quantum Accelerator Stack: A Research Roadmap
• Bosonic Indistinguishability-Dependent Contextuality
• Post-measurement Nonlocal Gates