diff --git a/content/Presentations/Talks/Good and bad news for noisy variational quantum algorithms—Part II.md b/content/Presentations/Talks/Good and bad news for noisy variational quantum algorithms—Part II.md new file mode 100644 index 0000000..171ea3e --- /dev/null +++ b/content/Presentations/Talks/Good and bad news for noisy variational quantum algorithms—Part II.md @@ -0,0 +1,26 @@ +--- +tags: QAOA, NISQ, Noise, Numerical +sort-date: 2024-03-06 +description: 2024 APS March Meeting | 6 March 2024 08:36–08:48 CST | Minneapolis, Minnesota, United States of America +--- +[[/index|Christopher K. Long]], +Nikola Yanakiev, +Crispin H. W. Barnes, +Normann Mertig, +and David R. M. Arvidsson-Shukur + +**Date & time:** 6 March 2024 08:36–08:48 CST + +**Location:** Minneapolis, Minnesota, United States of America + +**Conference:** [2024 APS March Meeting](https://meetings.aps.org/Meeting/MAR24/Content/4535) [@aps_mar24] + +I presented work from Ref. [@PhysRevA.109.032420]. This was part II/II following [[Good and bad news for noisy variational quantum algorithms—Part I]]. + +Download slide deck: [[PowerPoints/Good and bad news for noisy variational quantum algorithms—Part II.pptx|PPTX]], [[PDFs/Good and bad news for noisy variational quantum algorithms—Part II.pdf|PDF]] + +# Abstract + +From Ref. [@aps_mar24_talk2]: + +> The quantum approximate optimization algorithm (QAOA) is an appealing proposal to solve NP problems on noisy intermediate-scale quantum (NISQ) hardware. Making NISQ implementations of the QAOA resilient to noise requires short ansatz circuits with as few CNOT gates as possible. In this talk, we present Dynamic-ADAPT-QAOA. Our algorithm significantly reduces the circuit depth and the CNOT count of standard ADAPT-QAOA, a leading proposal for near-term implementations of the QAOA. Throughout our algorithm, the decision to apply CNOT-intensive operations is made dynamically, based on algorithmic benefits. Using density-matrix simulations, we benchmark the noise resilience of ADAPT-QAOA and Dynamic-ADAPT-QAOA. We compute the gate-error probability p below which these algorithms provide, on average, more accurate solutions than the classical, polynomial-time approximation algorithm by Goemans and Williamson. For small systems with 6–10 qubits, we show that p > 0.001 for Dynamic-ADAPT-QAOA. Compared to standard ADAPT-QAOA, this constitutes an order-of-magnitude improvement in noise resilience. This improvement should make Dynamic-ADAPT-QAOA viable for implementations on superconducting NISQ hardware, even in the absence of error mitigation. \ No newline at end of file