REVIEW 5 cited by
Experimental Demonstration of Break-Even for the Compact Fermionic Encoding
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
read the original abstract
The utility of solving the Fermi-Hubbard model has been estimated in the billions of dollars. Digital quantum computers can in principle address this task, but have so far been limited to quasi one-dimensional models. This is because of exponential overheads caused by the interplay of noise and the non-locality of the mapping between fermions and qubits. Here, we show experimentally that a recently developed local encoding can overcome this problem. We develop a new compilation scheme, called "corner hopping", that reduces the cost of simulating fermionic hopping by 42% which allows us to conduct the largest digital quantum simulations of a fermionic model to date, using a trapped ion quantum computer to prepare adiabatically the ground state of a 6 x 6 spinless Fermi-Hubbard model encoded in 48 physical qubits. We also develop two new error mitigation schemes for systems with conserved quantities, one based on local postselection and one on extrapolation of local observables. Our results suggest that Fermi-Hubbard models beyond classical simulability can be addressed by digital quantum computers without large increases in gate fidelity.
Forward citations
Cited by 5 Pith papers
-
Entanglement renormalization circuits for $2d$ Gaussian Fermion States
A new algorithm compresses 2D free-fermion ground states into logarithmic-depth MERA-like circuits, with numerical evidence of exponential accuracy for Haldane-model phases.
-
Symbolic Hamiltonian Compiler for Hybrid Qubit-Boson Processors
An automated symbolic compiler maps second-quantized fermion-boson Hamiltonians to qubit-boson gate sets, with gate counts per Trotter step that grow linearly with system size in the 1D benchmarks.
-
SPARK: Search Personalization via Agent-Driven Retrieval and Knowledge-sharing
SPARK is a proposed framework that coordinates persona-based LLM agents with layered memory and three collaboration protocols to produce personalized search.
-
Strategic Plan for Neutral Atom Quantum Computation
If qubit-count growth (~1.8x/yr) and gate-error reduction (~0.62x/yr) continue, neutral-atom quantum computers could reach practical quantum advantage within a decade, this roadmap projects.
-
Microscopy of Ultracold Fermions in Optical Lattices
A lecture-note review of quantum gas microscope experiments on the Fermi-Hubbard model, covering magnetism, polarons, transport, new lattice geometries, and low-temperature entropy-redistribution protocols.
Discussion (0). Continue with ORCID to comment.