4 papers
First fault-tolerant quantum memory demonstration for a generalized superfast encoding
James Brown, Kenny Heitritter
The Generalized Superfast Encoding (GSE) is a fermion-to-qubit mapping that has error-correcting/detecting properties. To this point, all demonstrations have been relegated to erro…
Reducing entanglement with a Hamiltonian derived Clifford transformation
James Brown, Erika Lloyd, Alexandre Fleury +2
Recently (Physica Scripta, 100(10):105401, 2025), an algorithm was introduced that deterministically generates a Clifford transformation from the Qubit Coupled Cluster (QCC) algori…
Mid-Circuit Measurements for Clifford Noise Reduction in Hamiltonian Simulations
James Brown, Jason Iaconis, Yuri Alexeev +6
Quantum simulation of fermionic Hamiltonians is a leading application of quantum computing, but accurate execution on present-day hardware is limited by error accumulation in deep…
Non-unitary Coupled Cluster Enabled by Mid-circuit Measurements on Quantum Computers
Alexandre Fleury, James Brown, Erika Lloyd +2
Many quantum algorithms rely on a quality initial state for optimal performance. Preparing an initial state for specific applications can considerably reduce the cost of probabilis…