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Bayesian and geometric analyses of power spectral densities of spin qubits in Si/SiGe quantum dot devices
Yujun Choi, Hruday Mallubhotla, Mark Friesen +2
Charge noise with a power-law spectrum poses a significant challenge to high-fidelity operation of spin qubits in semiconductor devices. Recently, considerable experimental work ch…
Leakage at zero temperature from changes in chemical potential in Majorana qubits
M. C. Goffage, A. Alase, M. C. Cassidy +1
Building a fault-tolerant quantum computer requires physical qubits with exceptionally low error rates. Majorana-based tetron qubits are predicted to exhibit error rates that decre…
Variational simulation of the Lipkin-Meshkov-Glick model on a neutral atom quantum computer
R. Chinnarasu, C. Poole, L. Phuttitarn +5
We simulate the Lipkin-Meshkov-Glick (LMG) model using the Variational-Quantum-Eigensolver (VQE) algorithm on a neutral atom quantum computer. We test the ground-state energy of sp…
Using stochastic resonance of two-level systems to increase qubit decoherence times
Yujun Choi, S. N. Coppersmith, Robert Joynt
Two-level systems (TLS) are the major source of dephasing of spin qubits in numerous quantum computing platforms. In spite of much effort, it has been difficult to substantially mi…