Numerical modeling of phonon-induced spin relaxation in displaced silicon double quantum dots reveals a new low-field spin-hot spot with relaxation rates four orders of magnitude lower than standard high-field ones when dots are separated by ~60 nm.
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Generalization of the one-tangle metric to higher-spin nuclei enables quantification of maximal electron-nuclear entanglement and direct computation of dephasing times in central-spin systems such as (In)GaAs quantum dots.
Non-reciprocal and chiral magnons mediate dissipative coupling of spin qubits to achieve steady-state Bell state entanglement in a driven hybrid NV-YIG system.
Time-multiplexing qubit control reduces drive lines with only logarithmic serialization overhead for single-qubit gates and zero overhead for couplers up to connectivity limits.
Simulations indicate a semiconducting cQED quantum annealer could complete MHT tasks in ~50 ms, positioning the technology as promising for real-time tracking applications.
citing papers explorer
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New Source of Spin-hot spot in displaced silicon double quantum dots
Numerical modeling of phonon-induced spin relaxation in displaced silicon double quantum dots reveals a new low-field spin-hot spot with relaxation rates four orders of magnitude lower than standard high-field ones when dots are separated by ~60 nm.
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Quantifying electron-nuclear spin entanglement dynamics in central-spin systems using one-tangles
Generalization of the one-tangle metric to higher-spin nuclei enables quantification of maximal electron-nuclear entanglement and direct computation of dephasing times in central-spin systems such as (In)GaAs quantum dots.
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Steady-state entanglement of spin qubits mediated by non-reciprocal and chiral magnons
Non-reciprocal and chiral magnons mediate dissipative coupling of spin qubits to achieve steady-state Bell state entanglement in a driven hybrid NV-YIG system.
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Overhead in Quantum Circuits with Time-Multiplexed Qubit Control
Time-multiplexing qubit control reduces drive lines with only logarithmic serialization overhead for single-qubit gates and zero overhead for couplers up to connectivity limits.
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Simulation of quantum annealing on a semiconducting cQED device for Multiple Hypothesis Tracking (MHT) benchmark
Simulations indicate a semiconducting cQED quantum annealer could complete MHT tasks in ~50 ms, positioning the technology as promising for real-time tracking applications.