1
Return

Quantum Feedback Cooling Without State Filtering

delete2026-01-01
delete0
PRE
AI
F
Franceschetti, Lorenzo *
T
Ticozzi, Francesco
DOI：10.1109/LCSYS.2026.3689062delete
deleteOriginal
deleteOriginal request for help
deleteShare
deleteSave
Abstract

Abstract

En 中文
We introduce a dynamic state-based feedback law that stabilizes quantum states or subspaces associated with extremal values of a continuously monitored observable - a problem motivated by quantum cooling tasks. We then propose an output-based approximation that uses simple filtering of the measurement record to emulate the required feedback signal, thereby avoiding full real-time quantum state estimation, a key bottleneck for implementing and scaling filtering-based feedback control. The performance of the resulting strategy is demonstrated numerically on two test-bed models for feedback cooling.
Keywords:
Feedback
Filtering
Circuits
Filters
Kalman filters
Circuits and systems
Nonlinear filters
Feedback control
Electronic mail
Feedback communications
Quantum information and control
stability of nonlinear systems
stochastic systems

Journal

I
IEEE Control Systems Letters
IF:
2
Papers:
94
Citations:
5.0K

Organization

U
university of padua
Scholars:
4.0K
Papers: 1.5K
Citations: 0
Cited Papers

Cited Papers

Citing Papers

Citing Papers