Quantum manipulation of a two-level mechanical system
Research output: Contribution to journal › Journal article › Research › peer-review
Documents
- Fulltext
Final published version, 2.02 MB, PDF document
We consider a nonlinearly coupled electromechanical system, and develop a quantitative theory for two-phonon cooling. In the presence of two-phonon cooling, the mechanical Hilbert space is effectively reduced to its ground and first excited states, allowing for quantum operations at the level of individual phonons and preparing nonclassical mechanical states with negative Wigner functions. We propose a scheme for performing arbitrary Bloch sphere rotations, and derive the fidelity in the specific case of a π-pulse. We characterise detrimental processes that reduce the coherence in the system, and demonstrate that our scheme can be implemented in state-of-the-art electromechanical devices.
Original language | English |
---|---|
Article number | 943 |
Journal | Quantum |
Volume | 7 |
Number of pages | 23 |
ISSN | 2521-327X |
DOIs | |
Publication status | Published - 2023 |
Bibliographical note
Publisher Copyright:
© 2023 Bogazici Universitesi. All rights reserved.
Number of downloads are based on statistics from Google Scholar and www.ku.dk
ID: 372967314