G centers in silicon show optically detectable spin resonances and coherent control, opening paths for silicon-based quantum devices.
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Three entangling gate types (ZZ, ZX, YY) for group-IV color centers are analyzed via dynamical decoupling, double-quantum transitions, optimal control, and algebraic decomposition, yielding quantum speed limits and practical protocol comparisons.
Simulations predict that Er3+ electron spins in CeO2 can reach second-scale Hahn-echo coherence at ~10 ppb doping and sub-Kelvin temperatures near clock transitions, with ~10 ms expected at 2 K.
Q-PulsePol restores quadrature symmetry via phase adjustments to the PulsePol sequence, yielding robust electron-nuclear polarization transfer under finite-pulse conditions where the original scheme degrades.
citing papers explorer
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Optical detection of the electron spin resonances of G centers in silicon
G centers in silicon show optically detectable spin resonances and coherent control, opening paths for silicon-based quantum devices.
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Control Protocols for Entangling Gates for Group-IV Color-Centers in Diamond
Three entangling gate types (ZZ, ZX, YY) for group-IV color centers are analyzed via dynamical decoupling, double-quantum transitions, optimal control, and algebraic decomposition, yielding quantum speed limits and practical protocol comparisons.
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Towards second-long electron spin coherence of a telecom quantum emitter in naturally abundant CeO$_2$
Simulations predict that Er3+ electron spins in CeO2 can reach second-scale Hahn-echo coherence at ~10 ppb doping and sub-Kelvin temperatures near clock transitions, with ~10 ms expected at 2 K.
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Quadrature-Symmetric PulsePol for Robust Quantum Control Beyond the Ideal Pulse Approximation
Q-PulsePol restores quadrature symmetry via phase adjustments to the PulsePol sequence, yielding robust electron-nuclear polarization transfer under finite-pulse conditions where the original scheme degrades.