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• 12 septembre
  [Institut Quantique] Séminaire IQ – Elijah Pelofske
  12 septembre

  [Institut Quantique] Séminaire IQ – Elijah Pelofske

  Lieu : Description : Lieu/Location : Auditorium de l'IQLanguage : EnglishElijah PelofskeLos Alamos National LaboratoryTitre/TitleShort-Depth QAOA Circuits and Quantum Annealing on Higher-Order Ising ModelsRésumé/AbstractWe present a direct comparison between QAOA (Quantum Alternating Operator Ansatz), and QA (Quantum Annealing) on 127 qubit problem instances. QAOA with p = 1, 2 rounds is executed on the 127 qubit heavy-hex graph gate-model quantum computer ibm_washington, using on-device grid-searches for angle finding, and QA is executed on two Pegasus-chip D-Wave quantum annealers. The problems are random Ising models whose connectivity matches heavy-hex graphs and the Pegasus graph connectivity, and optionally include hardware-compatible cubic terms (ZZZ terms). The QAOA circuits are heavily optimized and of extremely short depth, with a CNOT depth of 6 per round, which allows whole chip usage of the heavy-hex lattice. QAOA and QA are both compared against simulated annealing and the optimal solutions are computed exactly using CPLEX. The noiseless mean QAOA expectation values for p = 1, 2 are computed using classical light-cone based simulations. We find QA outperforms QAOA on the evaluated devices.

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• 15 septembre
  [Institut Quantique] IEEE Quantum Week
  15 septembre

  [Institut Quantique] IEEE Quantum Week

  Lieu : Description : https://qce.quantum.ieee.org/2024/

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• 18 septembre
  [Institut Quantique] Tournée du recteur – Faculté des sciences (D7-3021)
  18 septembre

  [Institut Quantique] Tournée du recteur – Faculté des sciences (D7-3021)

  Lieu : Description : Lieu : D7-3021

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