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6 papers · 2 filters
Adiabatic Sensing Technique for Optimal Temperature Estimation using Trapped Ions
Aleksandrina V. Kirkova, Weibin Li, Peter A. Ivanov
We propose an adiabatic method for optimal phonon temperature estimation using trapped ions which can be operated beyond the Lamb-Dicke regime. The quantum sensing technique relies…
Coherent control techniques for two-state quantum systems: A comparative study
Boyan T. Torosov, Bruce W. Shore, Nikolay V. Vitanov
We evaluate various sources of errors that occur when attempting to produce a specified coherent change of a two-state quantum system using six popular coherent control techniques:…
Dzyaloshinskii-Moriya and dipole-dipole interactions affect coupling-based Landau-Majorana-Stückelberg-Zener transitions
Roberto Grimaudo, Hiromichi Nakazato, Antonino Messina +1
It has been theoretically demonstrated that two spins (qubits or qutrits), coupled by exchange interaction only, undergo a coupling-based joint Landau-Majorana-Stückelberg-Zener (L…
Narrowband and passband composite pulses for variable rotations
Boyan T. Torosov, Svetoslav S. Ivanov, Nikolay V. Vitanov
We develop a systematic approach to derive narrowband (NB) and passband (PB) composite sequences which can produce any pre-selected transition probability with any desired accuracy…
High-fidelity multistate STIRAP assisted by shortcut fields
Nikolay V. Vitanov
Multistate stimulated Raman adiabatic passage (STIRAP) is a process which allows for adiabatic population transfer between the two ends of a chainwise-connected quantum system. The…
Universal Composite Pulses for Efficient Population Inversion with an Arbitrary Excitation Profile
Genko T. Genov, Marcel Hain, Nikolay V. Vitanov +1
We introduce a method to rotate arbitrarily the excitation profile of universal broadband composite pulse sequences for robust high-fidelity population inversion. These pulses comp…