8 papers
Finite-Time Optomechanical Cooling by Multi-Exceptional-Point Braiding
Borhan Ahmadi
Cooling protocols are usually optimized through static detunings and damping rates. Here we show that exceptional-point braiding can enhance finite-time optomechanical cooling unde…
Reservoir-Engineered Low-Threshold Quantum Energy Storage
Borhan Ahmadi, André H. A. Malavazi, PaweŠMazurek +2
Fast charging of quantum batteries requires amplification of the energy transferred to a storage mode without uncontrolled gain or phenomenological non-Hermitian dynamics. Inspired…
Quantum Batteries as Work Sources for Phase-Locked Parametric Amplification
Borhan Ahmadi
Quantum batteries have been proposed as locally precharged work sources for superconducting quantum technologies, suggesting a route to reduce continuously supplied microwave drive…
Charging Quantum Batteries with Chiral Squeezing
Borhan Ahmadi, André H. A. Malavazi, Janine Splettstoesser +2
We propose a quantum-battery charger based on a driven bosonic Kitaev chain (BKC), where chiral squeezing converts passive input fluctuations into ordered, non-passive battery stat…
Quantum-Battery-Powered Geometric Landau-Zener Interferometry
Borhan Ahmadi
Classical microwave drives are usually treated as ideal phase-coherent work sources for superconducting-qubit control. What if such a drive is replaced by a finite quantum battery.…
Charge-Preserving Operations in Quantum Batteries
André H. A. Malavazi, Borhan Ahmadi, PaweŠHorodecki +1
Ergotropy provides a fundamental measure of the extractable work from a quantum system and, consequently, of the maximal useful energy, or charge, stored within it. Understanding h…