QUANTUM INFORMATION THEORY / Sergey Filippov

Entry requirements:

•  Master’s degree / equivalent in a related field
•  B2 level of English
•  Good track record of publications related to the topic of the intended research
•  Strong research proposal 1,500 - 3,500 words

Research supervisor:
Sergey Filippov
PhD, Head of the Laboratory of
Quantum Information Theory

Supervisor’s research interests:

•  Quantum Technologies.
•  Quantum Measurements.
•  Quantum Information Theory.
•  Entanglement and Separability.
•  Dynamics of Open Quantum Systems.
•  Quantum Channels.
•  Geometry of Quantum States.
•  Quantum Computers and Computing.
•  Tensor Networks.
•  Machine Learning.

Research highlights:
World-leading research with publications in the best journals in the field of Quantum Physics and Mathematical Physics such as Physical Review Letters, Physical Review A, Journal of Mathematical Physics. A broad network of collaborators in Finland, Poland, Slovakia, and Czech Republic.

Supervisor’s specific requirements:
Exceptionally good knowledge of linear algebra and quantum mechanics.

.Main publications:

•  I.A. Luchnikov, S.V. Vintskevich, D.A. Grigoriev, S.N. Filippov. Machine learning non-Markovian quantum dynamics // Physical Review Letters 124, 140502 (2020).
•  S.N. Filippov and K.V. Kuzhamuratova. Quantum informational properties of the Landau–Streater channel // J. Math. Phys. 60, 042202 (2019)
•  I.A. Luchnikov, S.V. Vintskevich, H. Ouerdane, and S.N. Filippov. Simulation Complexity of Open Quantum Dynamics: Connection with Tensor Networks // Physical Review Letters 122, 160401 (2019).
•  S.V. Vintskevich, D.A. Grigoriev, S.N. Filippov. Effect of an incoherent pump on two-mode entanglement in optical parametric generation // Physical Review A 100, 053811 (2019).
•  S.N. Filippov, V.V. Frizen, D.V. Kolobova. Ultimate entanglement robustness of two-qubit states against general local noises // Physical Review A 97, 012322 (2018).
•  S.N. Filippov, T. Heinosaari, L. Leppajarvi. Simulability of observables in general probabilistic theories // Phys. Rev. A 97, 062102 (2018).
•  S.N. Filippov, D. Chruscinski. Time deformations of master equations // Phys. Rev. A 98, 022123 (2018).
•  S.N. Filippov. Lower and upper bounds on nonunital qubit channel capacities // Reports on Mathematical Physics 82, 149-159 (2018).
•  S.N. Filippov, K. Yu. Magadov. Positive tensor products of qubit maps and n-tensor-stable positive qubit maps // J. Phys. A: Math. Theor. 50, 055301 (2017).
•  I.A. Luchnikov, S.N. Filippov. Quantum evolution in the stroboscopic limit of repeated measurements // Phys. Rev. A 95, 022113 (2017).
•  F. Benatti, D. Chruscinski, S. Filippov. Tensor power of dynamical maps and positive versus completely positive divisibility // Phys. Rev. A 95, 012112 (2017).
•  S.N. Filippov, J. Piilo, S. Maniscalco, M. Ziman, Divisibility of quantum dynamical maps and collision models // Phys. Rev. A 96, 032111 (2017).