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quant-ph2026
Impact of gate-voltage noise on silicon spin-qubit variational quantum eigensolvers
Xinning Wang, Bohdan Khromets, Zachery Merino +1
Quantum computers offer a route to outperform classical methods in tasks such as molecular simulation, motivating hybrid algorithms like the Variational Quantum Eigensolver (VQE) f…
quant-ph2024
Quantum optimal control robust to noises using fractional calculus: voltage-controlled exchange in semiconductor spin qubits
Bohdan Khromets, Jonathan Baugh
Low-frequency charge noise significantly hinders the performance of voltage-controlled spin qubits in quantum dots. Here, we utilize fractional calculus to design voltage c…
quant-ph2024
Hamiltonian engineering with time-ordered evolution for unitary control of electron spins in semiconductor quantum dots
Bohdan Khromets, Zach D. Merino, Jonathan Baugh
We present a unitary control pulse design method for a scalable quantum computer architecture based on electron spins in lateral quantum dots. We employ simultaneous control of spi…