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UID:submissions.supercomputing.org_SC23_sess446_ws_qcs104@linklings.com
SUMMARY:A Reference Implementation for a Quantum Message Passing Interface
DESCRIPTION:Workshop\n\nYue Shi and Tommy Nguyen (Pacific Northwest Nation
 al Laboratory (PNNL), University of Washington); Samuel Stein, Tim Staveng
 er, and Marvin Warner (Pacific Northwest National Laboratory (PNNL)); Mart
 in Roetteler and Torsten Hoefler (Microsoft Corporation); and Ang Li (Paci
 fic Northwest National Laboratory (PNNL))\n\nPractical applications of qua
 ntum computing are currently limited by the number of qubits that can be s
 et with reasonable fidelities for each system. Therefore, a distributed qu
 antum computing system with multiple quantum computers coherently connecte
 d is highly demanding. To realize the internode communication of quantum i
 nformation, the software interface, Quantum Message Passing Interface (QMP
 I), leveraging the framework built for classical MPI but taking advantage 
 of quantum teleportation to communicate between different quantum nodes wa
 s proposed. In this project, we develop the QMPI with point-to-point and c
 ollective operations in Qiskit and characterize its performance by demonst
 rating the application implementations. Moreover, we developed a new techn
 ique for optimizing collective communication of the distributed quantum pr
 ograms with Multi-Controlled Toffoli gates. This technique beats the state
 -of-the-art in terms of fidelity and the number of remote EPR pairs consum
 ed in both simulations and experiments.\n\nTag: Quantum Computing, Softwar
 e Engineering\n\nRegistration Category: Workshop Reg Pass\n\nSession Chair
 s: Yuri Alexeev (Argonne National Laboratory (ANL), University of Chicago)
 ; Bert de Jong (Lawrence Berkeley National Laboratory (LBNL)); Travis Humb
 le (Oak Ridge National Laboratory (ORNL)); Dmitry Liakh (NVIDIA Corporatio
 n); Hausi Muller (University of Victoria, British Columbia; IEEE Quantum W
 eek); and Ojas Parekh (Sandia National Laboratories)
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