Computational Advantage from the Quantum Superposition of Multiple Temporal Orders of Photonic Gates
Márcio M. Taddei, Jaime Cariñe, Daniel Martínez, Tania García, Nayda Guerrero, Alastair A. Abbott, Mateus Araújo, Cyril Branciard, Esteban S. Gómez, Stephen P. Walborn, Leandro Aolita, Gustavo Lima
Abstract
Playing with causal orders leads to quadratic speed-up: An efficient algorithm is introduced and implemented in a scalable fiber-optic based experiment that achieves, for the first time, a quantum 4-switch gate.
Topics & Concepts
Superposition principleQuantumPhysicsQuadratic equationQuantum computerQuantum gateComputer scienceQuantum mechanicsPhotonicsScalabilityAlgorithmQuantum algorithmQuantum error correctionMathematicsElectronic engineeringQuantum superpositionComputational complexity theoryQuantum networkTopology (electrical circuits)Key (lock)ComputationQuantum circuitQuantum phase estimation algorithmEncoding (memory)Quantum information processingBeam splitterQuantum technologyQuantum informationNeural Networks and Reservoir ComputingOptical Network TechnologiesQuantum Computing Algorithms and Architecture