Researchers have developed somersaulting spin qubits for universal quantum logic. This achievement may enable efficient control of large semiconductor qubit arrays. The research group recently published their demonstration of hopping spins and somersaulting spins.
Researchers at QuTech developed somersaulting spin qubits for universal quantum logic. This achievement may enable efficient control of large semiconductor qubit arrays. The research group published their demonstration of hopping spins in Nature Communications and their work on somersaulting spins inIn 1998, Loss and DiVincenzo published the seminal work 'quantum computation with quantum dots'.
When considering the difference between hopping and somersaulting qubits, think of quantum dot arrays as a trampoline park, where electron spins are like people jumping. Typically, each person has a dedicated trampoline, but they can hop over to neighbouring trampolines if available. Germanium has a unique property: just by jumping from one trampoline to the next, a person experiences a torque that makes them somersault. This property allows researchers to control the qubits effectively.
Different trampolines make people experience different torques when jumping, and similarly, hopping spins between quantum dots also result in unique rotations. It is thus important to characterize and understand the variability. Co-author Francesco Borsoi adds:"We established control routines that enables to hop spins to any quantum dot in a 10-quantum dot array, which allows us to probe key qubit metrics in extended systems.
Quantum Physics Physics Quantum Computing Quantum Computers Spintronics Research Computers And Internet Encryption
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