Quantum control of spin qubits using SOT-driven nanomagnets
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2026
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866918533742460928 |
|---|---|
| author | Chakraborty, Aniruddha Modi, Kanishk Bhattacharya, Dhritiman Mukhopadhyay, Uditendu Mahapatra, Suddhasatta Atulasimha, Jayasimha |
| author_facet | Chakraborty, Aniruddha Modi, Kanishk Bhattacharya, Dhritiman Mukhopadhyay, Uditendu Mahapatra, Suddhasatta Atulasimha, Jayasimha |
| contents | Spin rotation (SR) is an essential capability for realization of single and two-qubit gates in spin quantum computing (SQC) architectures. To perform SR, resonant AC magnetic fields are either generated by microwave current pulses fed to an antenna, or voltage pulses applied to a gate, in presence of an inhomogeneous Zeeman field. While the former approach is limited by gate-speed and site-selectivity of SR, the latter adds to the decoherence of the spin qubits. Here, we propose an alternative technique for driving high-speed SR without compromising the qubit coherence, by employing spin-orbit-torque (SOT)-driven nanomagnets to produce oscillating magnetic fields, locally at the qubit site. The proposed scheme is highly energy-efficient, scalable, and compatible with the CMOS fabrication technology. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2606_00824 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Quantum control of spin qubits using SOT-driven nanomagnets Chakraborty, Aniruddha Modi, Kanishk Bhattacharya, Dhritiman Mukhopadhyay, Uditendu Mahapatra, Suddhasatta Atulasimha, Jayasimha Mesoscale and Nanoscale Physics Spin rotation (SR) is an essential capability for realization of single and two-qubit gates in spin quantum computing (SQC) architectures. To perform SR, resonant AC magnetic fields are either generated by microwave current pulses fed to an antenna, or voltage pulses applied to a gate, in presence of an inhomogeneous Zeeman field. While the former approach is limited by gate-speed and site-selectivity of SR, the latter adds to the decoherence of the spin qubits. Here, we propose an alternative technique for driving high-speed SR without compromising the qubit coherence, by employing spin-orbit-torque (SOT)-driven nanomagnets to produce oscillating magnetic fields, locally at the qubit site. The proposed scheme is highly energy-efficient, scalable, and compatible with the CMOS fabrication technology. |
| title | Quantum control of spin qubits using SOT-driven nanomagnets |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2606.00824 |