Projects
Ongoing Projects:
Decoherence time
I explore the ways to increase the decoherence time of a three-level system (qutrit) in the non-Markovian limit. Particularly, I look a specific configuration of the coupling constants between the environment and the modes of our system, in which the decoherence time rises significantly.
Quantum codes
I am writing a program which can calculate the distance of a Linear Quantum Code using random algorithm.
Bachelor’s thesis
Using the Wigner–Weisskopf approach and the new specific approximation, I reviewed the Purcell effect for a two-level system (qubit) in three spatial dimensions in the resonator, consisted of two parallel infinite plates. I obtained the same result for the Purcell factor as in K. Kakazu and Y. S. Kim, Phys. Rev. A 50, 1830 (1994), despite of the distinctive nature of the used approximation, which serve as a proof of the connection between the two different approaches. After that I examined the relaxation of a qubit using the Jaynes–Cummings model to obtain analytical results and then the Lindblad equation to simulate the relaxation process in an imperfect resonator.
My code in Python, related to the problem, can be found here:
Finished Projects
Anomalious Exciton Hall Effect
I with my colleagues examined and described a new type of the Hall effect. In quantum wells, 2D excitons have asymmetric contribution to their scattering on the charged impurities due to the presence of a dipole moment perpendicular to both the magnetic field and the direction of propagation.