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- Istanbul Technical UniversityTR55 papers
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196 papers · 1 filter
Dissipation-protected energy storage in interacting multilevel quantum batteries
Yiğit Perçin, Özgür E. Müstecaplıoğlu
Dark and subradiant states have emerged as a promising resource for stabilizing open quantum batteries against dissipation, but existing studies are largely limited to qubit ensemb…
Topological Engine Monitor: Persistent Homology-Based Fault Detection in Finite-Time Quantum Engines
Miraç Kerem Maden, Asghar Ullah, Baris Coskunuzer +1
The reliable operation of finite-time quantum heat engines is fundamentally limited by control imperfections that induce nonadiabatic phase accumulation and quantum friction, degra…
Harnessing Floquet dynamics for selective metrology in few-qubit systems
Asghar Ullah, Hasan Mermer, Melih Özkurt +2
Periodically driven quantum systems can function as highly selective parameter filters. We demonstrate this capability in a finite-size, three-qubit system described by the transve…
Reciprocity Theorem and Fundamental Transfer Matrix
Farhang Loran, Ali Mostafazadeh
Stationary potential scattering admits a formulation in terms of the quantum dynamics generated by a non-Hermitian effective Hamiltonian. We use this formulation to give a proof of…
Optimizing quantum sensing networks via genetic algorithms and deep learning
Asghar Ullah, Özgür E. Müstecaplıoğlu, Matteo G. A. Paris
We investigate the optimization of graph topologies for quantum sensing networks designed to estimate weak magnetic fields. The sensors are modeled as spin systems governed by a tr…
Optimal strategies for transient and equilibrium quantum thermometry using Gaussian and non-Gaussian probes
Asghar Ullah, M. Tahir Naseem, Özgür E. Müstecaplıoğlu
We study temperature estimation using quantum probes, including single-mode initial states and two-mode states generated via stimulated parametric down-conversion in a nonlinear cr…