sequence–simulator of quantum network …kettimut/talks/sequence-aps...aps march meeting 2019...
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APS MARCH MEETING 2019
SeQUeNCe – Simulator of Quantum Network Communication
erhtjhtyhy
Rajkumar KettimuthuArgonne National Laboratory, USA
Joint work with Martin Suchara, Joaquin Chung, Yuri Alexeev
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QUANTUM NETWORK APPLICATIONS: DISTRIBUTED COMPUTATION• Connecting small quantum processors
allows solving larger problems:• Distributed computing possible with
exponentially less communication:
quantum channel
Bob
Y: 01110101X=Y ?
Promise: Hamming distance n/2 or 0
Alice
X: 01110101
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TELEPORTATION NETWORK APPLICATIONS
Quantum internet
Entanglement Generator
BankSensor
Datacenter
Repeater
Sensor
RepeaterEntanglement
Generator
Repeater
• Connected quantum sensors, accurate clock synchronization, secure delegated Quantum computing
• Bandwidth, latency and security requirements vary
• These applications require long-distance communication
• Multiple repeaters and entanglement generators are used
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QUANTUM TELEPORTATION AT CQE
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Optical table demonstrating the principles of quantum teleportation in the
Awschalom Lab (University of Chicago and Argonne)
Argonne-FermilabquantumlinkFibertype:OS2singlemodeDistance:29.89miles
Quantum teleportation allows transmission of quantum states between
two network hosts (Argonne and Fermilab)
P11.00008 : Characterization of epitaxially grown Er doped Y2O3 for quantum optics applications
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ENTANGLEMENT SWAPPINGl Distribution of entangled
photons only between NNl Stored in QR memories until
they are consumedl Optional purification
techniques to improve qualityl ES used to obtain long-
distance entanglementl Achieved by BBM on the
appropriate pairs of photons l Communicating measured
Pauli Frame to the end hosts
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MULTI-NODE QUANTUM NETWORK ARCHITECTURE
• Reconfigurable quantum nodes
• Memory, photon pair source, BSM unit
• Coherent quantum materials and photonics
• Long coherence memory, classical control of photon
• Control plane determines role and action of nodes
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CONTROL PLANE
l Quantum nodes integrate with control plane via FPGA & fast I/O
l Layered control plane stack –lowest layer controls hardware, highest layer provides service to applications
l Routing – identify route, perform entanglement swapping, communicate Pauli frame
l SeQUeNCe will be used to verify the correctness of the control protocol implementation
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SIMULATOR OF QUANTUM NETWORK COMMUNICATION (SeQUeNCe)l Modularized discrete event
simulator with a schedulerl Simulates quantum communication
at photon-level l Other simulators:
1. A. Dahlberg & S. Wehner, SimulaQron—a simulator for developing quantum internet software
2. The Network Simulator for Quantum Information using Discrete events, https://netsquid.org/
3. B. Bartlett, "A distributed simulation framework for quantum networks and channels"
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DISCRETE EVENT SIMULATION OF TELEPORTATIONl DES models the
operation of a system as a discrete sequence of events in time
l Simulation jump in time from one event to next
l Events generated upon a request or at the end of a certain activity
l Event is associated with a time and a function to invoke
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SAMPLE QUANTUM NETWORK TOPOLOGY
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Repeater snippet:• It have 2 neighbors• Properties of quantum and
classical channels• Number of quantum memories
is a multiple of number of quantum links
End-host snippet:• Only have one neighbor• Properties of quantum and
classical channel• Number of quantum memories
TOPOLOGY REPRESENTATION
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• Majority of prior work focuses on point-to-point quantum communication
• CQE aiming to experimentally realize a multi-node network architecture
• Systematic design that leverages experience from traditional networking
• Classical control software to enable rapid experimental progress
• Discrete event simulator to verify scalability, performance of the network
• Quantum networks rely on early generation hardware components
• SeQUeNCe to quantify benefits, understand value of improvements
• SeQUeNCe to verify correctness, understand security of network designs
SUMMARY
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THANKS… QUESTIONS?