Back to Demos
IBM FEZ VALIDATED
FEB 2, 2026

CHEMGATE: VQE COST OPTIMIZER

Lower quantum chemistry compute costs without sacrificing accuracy. Typically 30-40% cost reduction on real drug molecule workloads, validated on IBM Heron hardware.

WHAT CHEMGATE DELIVERS

32-42% SAVINGS

Fewer quantum hardware computations per VQE iteration with zero accuracy loss

DRUG-SCALE

Validated on real pharmaceutical molecules up to 16 qubits

FAIL-SAFE

Built-in accuracy guarantees with automatic recovery when needed

HW VALIDATED

Tested on IBM Fez and Rigetti Ankaa-3 with real quantum hardware noise

IBM FEZ HARDWARE VALIDATION

MOLECULE

Caffeine

QUBITS

8

EVALUATIONS

Computations evaluated

VALIDATION

Evaluated: 53%

COMMERCIAL VALUE

32-42% fewer evaluations

Each evaluation costs real QPU time. ChemGate reduces computation cost.

Fail-safe by design

Guaranteed accuracy with automatic recovery. Best case: save 44% of evaluation cost.

Real drug molecule validation

Validated across multiple drug molecules with ab initio reference energies.

Complements other optimization approaches

Complements shot reduction methods. Evaluation reduction × shot reduction.

VALIDATED RESULTS SUMMARY

MOLECULEQUBITSSAVINGSBACKEND
Caffeine832%IBM Fez
Warfarin1641%Simulation
Metformin1644%Simulation
Penicillin V1644%Simulation

All Hamiltonians: ab initio with validated geometries. No synthetic data.

METHODOLOGY

SIMULATION

Simulation with classical optimizer. Paired episodes per molecule. Statistical significance validated.

HARDWARE (MODE A)

Final optimized circuits from simulation submitted to IBM Fez. Real hardware energy measurement.

HAMILTONIANS

All drug molecules generated via standard computational chemistry pipelines. Ab initio reference energies. Zero synthetic data.