Di Fang

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quant-ph2026

$T$ -efficient unitary synthesis via block-sparse Hamiltonian simulation

Diyi Liu, Shuchen Zhu, Wibe Albert de Jong +3

We construct Clifford+ $T$ circuits implementing arbitrary $n$ -qubit unitaries with worst-case $T$ -count $O (N^{8/7})$ at constant operator-norm error, where $N = 2^{n}$ , imp…

quant-ph2026

Logical Resource Estimation for Quantum State Preparation with Compilation

Diyi Liu, Hanyu Wang, Shuchen Zhu +6

Quantum state preparation is a fundamental primitive in quantum algorithms for encoding classical data into quantum amplitudes. We compare the cost of preparing general $n$ -qubit s…

quant-ph2026

Trotterization with Many-body Coulomb Interactions: Convergence for General Initial Conditions and State-Dependent Improvements

Di Fang, Xiaoxu Wu

Efficiently simulating many-body quantum systems with Coulomb interactions is a fundamental question in quantum physics, quantum chemistry, and quantum computing, yet it presents u…

T-efficient unitary synthesis via block-sparse Hamiltonian simulation

Logical Resource Estimation for Quantum State Preparation with Compilation

Trotterization with Many-body Coulomb Interactions: Convergence for General Initial Conditions and State-Dependent Improvements

$T$ -efficient unitary synthesis via block-sparse Hamiltonian simulation