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DTSTART;TZID=America/Denver:20231113T163000
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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:Yue Shi and Tommy Nguyen (Pacific Northwest National Laborator
 y (PNNL), University of Washington); Samuel Stein, Tim Stavenger, and Marv
 in Warner (Pacific Northwest National Laboratory (PNNL)); Martin Roetteler
  and Torsten Hoefler (Microsoft Corporation); and Ang Li (Pacific Northwes
 t National Laboratory (PNNL))\n\nPractical applications of quantum computi
 ng are currently limited by the number of qubits that can be set with reas
 onable fidelities for each system. Therefore, a distributed quantum comput
 ing system with multiple quantum computers coherently connected is highly 
 demanding. To realize the internode communication of quantum information, 
 the software interface, Quantum Message Passing Interface (QMPI), leveragi
 ng the framework built for classical MPI but taking advantage of quantum t
 eleportation to communicate between different quantum nodes was proposed. 
 In this project, we develop the QMPI with point-to-point and collective op
 erations in Qiskit and characterize its performance by demonstrating the a
 pplication implementations. Moreover, we developed a new technique for opt
 imizing collective communication of the distributed quantum programs with 
 Multi-Controlled Toffoli gates. This technique beats the state-of-the-art 
 in terms of fidelity and the number of remote EPR pairs consumed in both s
 imulations and experiments.\n\nTag: Quantum Computing, Software Engineerin
 g\n\nRegistration Category: Workshop Reg Pass\n\nSession Chairs: Yuri Alex
 eev (NVIDIA Corporation); Bert de Jong (Lawrence Berkeley National Laborat
 ory (LBNL)); Travis Humble (Oak Ridge National Laboratory (ORNL), Quantum 
 Science Centre); Dmitry Liakh (NVIDIA Corporation); Hausi Muller (Universi
 ty of Victoria, British Columbia; IEEE Quantum Week); and Ojas Parekh (San
 dia National Laboratories)\n\n
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