Truncated Wigner dynamics of biclique quantum spin glasses

• URL: http://arxiv.org/abs/2606.20187v1
• Date: Thu, 18 Jun 2026 13:00:31 GMT
• Title: Truncated Wigner dynamics of biclique quantum spin glasses
• Abstract summary: Quantum spin glasses are often considered testbeds for studying quantum optimization algorithms.<n>We investigate the near adiabatic dynamics of biclique quantum spin glasses within the truncated Wigner approximation.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Quantum spin glasses are often considered testbeds for studying quantum optimization algorithms and as such have been the subject of various quantum advantage claims. Here we investigate the near adiabatic dynamics of biclique quantum spin glasses within the (discrete) truncated Wigner approximation (TWA). Benchmarks on small systems show that TWA recovers sample-to-sample fluctuations of the Edwards-Anderson order parameter, over a wide range of annealing times, with increasing fidelity when the system size increases. We extract critical exponents from the Binder cumulant in line with theoretical expectations, reproducing recent quantum experiments. The computational cost of the method is minimal and it can easily be applied to tens of thousands of qubits.

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