812 citations · 1.7k across the 39 of their papers we have counts for
39 papers
Tuning the initial phase to control the final state of a driven qubit
Polina Kofman, Sergey Shevchenko, Franco Nori
A driven quantum system can experience Landau-Zener-Stuckelberg-Majorana (LZSM) transitions between its states, when the respective energy levels quasi-cross. If this quasicrossing…
Quantifying quantum coherence of multiple-charge states in tunable Josephson junctions
Jiangbo He, Dong Pan, Mingli Liu +11
Coherence and tunneling play central roles in quantum phenomena. In a tunneling event, the time that a particle spends inside the barrier has been fiercely debated. This problem be…
Coherent dynamics of a photon-dressed qubit
M. P. Liul, C. -H. Chien, C. -Y. Chen +6
We consider the dynamics and stationary regime of a capacitively-shunted transmon-type qubit in front of a mirror, affected by two signals: probe and dressing signals. By varying t…
Rate-equation approach for multi-level quantum systems
M. P. Liul, S. N. Shevchenko
Strong driving of quantum systems opens opportunities for both controlling and characterizing their states. For theoretical studying of these systems properties we use the rate-equ…
Nonlinear Landau-Zener-Stückelberg-Majorana problem
Sahel Ashhab, Olga A. Ilinskaya, Sergey N. Shevchenko
In the standard Landau-Zener-Stückelberg-Majorana (LZSM) problem, the bias sweep rate and gap are both time independent and fully characterize the LZSM problem. We consider the non…
Majorana's approach to nonadiabatic transitions validates the adiabatic-impulse approximation
Polina O. Kofman, Oleh V. Ivakhnenko, Sergey N. Shevchenko +1
The approach by Ettore Majorana for non-adiabatic transitions between two quasi-crossing levels is revisited. We rederive the transition probability, known as the Landau-Zener-Stüc…