Block-product paired non-Gaussian fermionic states allow efficient classical additive-error approximation of transition amplitudes, overlaps, and high-weight correlators under free-fermionic dynamics using multivariate Pfaffian polynomials.
arXiv:2510.26300 (2025)
7 Pith papers cite this work. Polarity classification is still indexing.
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TD-FLF reduces the time-dependent Schrödinger equation for correlated fermions to a generalized eigenvalue problem using a time-dependent distribution of a classical fluctuating field, yielding results close to exact diagonalization on half-filled 2D Hubbard lattices while outperforming mean-field.
Demonstration of utility-scale quantum simulation of collective dissipation in 1D qubit chains up to 86 emitters using Trotterized dynamic circuits, biased CDR error mitigation, and classical MC-TEBD validation on IBM hardware.
The biplanar architecture maps Fermi-Hubbard spin sectors to two planes, eliminating swaps and cutting each Trotter step depth to 4t_synth + 90 logical timesteps versus 6t_synth + 354 in single-plane methods, yielding an estimated 2-hour runtime for L=8 with 1.35 million physical qubits under a 1% 1
Mixing a single low-noise logical circuit with several physical folded circuits in ZNE cuts the runtime needed for fixed estimator variance by orders of magnitude when the logical error-suppression factor γ≲0.1.
NISQ quantum-advantage demos keep falling to classical simulation because hardware-fidelity circuit regions coincide with classically compressible structure; exit requires fault tolerance.
NISQ quantum simulation of spin-wave spectra in 2D chromium tri-halide magnets achieves agreement with classical benchmarks at quasi-constant wall-time scaling.
citing papers explorer
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Classical simulation of free-fermionic dynamics and quantum chemistry with magic input
Block-product paired non-Gaussian fermionic states allow efficient classical additive-error approximation of transition amplitudes, overlaps, and high-weight correlators under free-fermionic dynamics using multivariate Pfaffian polynomials.
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Time-dependent fluctuating local field approach for description of the correlated fermions dynamics
TD-FLF reduces the time-dependent Schrödinger equation for correlated fermions to a generalized eigenvalue problem using a time-dependent distribution of a classical fluctuating field, yielding results close to exact diagonalization on half-filled 2D Hubbard lattices while outperforming mean-field.
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Utility-scale quantum experiments using dynamic circuits to address collective dissipation in interacting qubits
Demonstration of utility-scale quantum simulation of collective dissipation in 1D qubit chains up to 86 emitters using Trotterized dynamic circuits, biased CDR error mitigation, and classical MC-TEBD validation on IBM hardware.
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Two Layers, No Swaps: Biplanar SPOQC Architecture Improves Runtime of Fermi-Hubbard Simulation
The biplanar architecture maps Fermi-Hubbard spin sectors to two planes, eliminating swaps and cutting each Trotter step depth to 4t_synth + 90 logical timesteps versus 6t_synth + 354 in single-plane methods, yielding an estimated 2-hour runtime for L=8 with 1.35 million physical qubits under a 1% 1
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Hybrid physical/logical zero-noise extrapolation with limited logical executions
Mixing a single low-noise logical circuit with several physical folded circuits in ZNE cuts the runtime needed for fixed estimator variance by orders of magnitude when the logical error-suppression factor γ≲0.1.
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The NISQ Trap: Eight Years of Demonstrations the Hardware Was Built to Lose
NISQ quantum-advantage demos keep falling to classical simulation because hardware-fidelity circuit regions coincide with classically compressible structure; exit requires fault tolerance.
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Quantum Simulation of Magnetic Materials: from Ab-Initio to NISQ
NISQ quantum simulation of spin-wave spectra in 2D chromium tri-halide magnets achieves agreement with classical benchmarks at quasi-constant wall-time scaling.