A friendly visit to Kaiserslautern

From 11th to 15th of November 2019 Prof. Dr. Sergey Moiseev, director of KQC was in Technical University of Kaiserslautern with a friendly visit.

He gave a talk on the scientific research of the center, putting the main focus on Quantum memory development. He later had discussions with the dean of the Physical department of TU Kaiserslautern and our good friends Prof. Dr. Artur Widera and Dr. Thomas Niederprüm. The topic was the joint Master degree program between TUKl and KAI representer by KQC under the GRIAT initiative.

Another highlight of the visit was a 4.5 hour tour around the laboratories of the Physics department of TUKl with Dr. Christian Hartmann lead by Dr. Thomas Niederprüm.

The main result of the visit was a strong confidence from both sides that KQC and TUKl must have a strong scientific collaboration which would benefit both research and joint master program of Advanced Quantum Technologies.

From left to right: Dr. Thomas Niederprüm, Dr. Christian Hartmann, Prof. Dr. Sergey Moiseev and master student Alexander Pavlov
Lecture “Quantum Biothermometry”

Lecture “Quantum Biothermometry”

On Friday, August 9, at 11:00, a lecture by the head of the Photonics and Quantum Technology Laboratory, Alexei Mikhailovich Zheltikov, will be held in the conference hall of the Kazan Quantum Center.

A lecture by Alexei Mikhailovich will be devoted to the results of recent research in the field of quantum biothermometry. Everyone is welcome.

The talk by Boris Igorevich Bantysh

This Friday (16.11.2018) at 11 o’clock, Boris Igorevich Bantysh (NRU of Electronic Technology) will deliver a report on his Ph.D. thesis on the development of quantum tomography methods.
Thesis title:
Development of methods for analyzing the impact of decoherence on the quality of quantum transformations, algorithms and measurements
Supervisor – Yu. I. Bogdanov
Leading organization – KNITU-KAI

President of Tatarstan Visits Kazan Quantum Center KNITU-KAI

President of Tatarstan Visits Kazan Quantum Center KNITU-KAI

On Monday, June 4, 2018, the Kazan Quantum Center of KNITU-KAI was visited by the President of the Republic of Tatarstan, Rustam Minnikhanov. The visit was part of the opening ceremony of the specialized competence center Siemens PLM Software (PLM laboratory), which was also attended by the president of Siemens in Russia, Dietrich Möller, and the rector of KNITU-KAI, Albert Gilmutdinov.

Director of the quantum center Sergey Moiseev told the guests about his activities, results and plans for the future.

The Minister of Informatization and Communications of Tatarstan Roman Shaikhutdinov informed that the organizations of the banking sector are interested in the development of quantum networks and paid special attention to the necessity of financing the creation of quantum networks.

In the test mode, it is planned to launch a quantum network between the cities of Kazan, Chistopol and Naberezhnye Chelny.

PhD thesis presentation by Mohsen Akbari

The PhD thesis by  Mohsen Akbari from Kazan E. K. Zavoisky Physical-Technical Institute, Kazan Federal University titled

Three-photon spontaneous dispestion and quantum logic gates in ring micro-resonators

Will be presented 22.06.2017 at 2:00 pm at the conference hall.

Three-photon spontaneous dispestion and quantum logic gates in ring micro-resonators

(c)  Mohsen Akbari

The Physics-Uspekhi’s competition “The best articles and reviews 2015”

Congratulations to the prof. A. M. Zheltikov and his colleagues I. V. Fedotov, A. B. Fedotov  from  the laboratory of Photonics and quantum technologies on winning “The best review 2015” award by Physics-Uspekhi journal for the work

Neurophotonics: optical methods to study and control the brain

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Abstract. Methods of optical physics offer unique opportunities for the investigation of brain and higher nervous activity. The integration of cutting-edge laser technologies and advanced neurobiology opens a new cross-disciplinary direction of natural sciences — neurophotonics, leading to the development of a vast arsenal of tools for functional brain diagnostics, stimulation of individual neurons and neural networks, as well as molecular engineering of brain cells aimed at a diagnosis and therapy of neurodegenerative and psychic diseases. Optical fibers suggest unique approaches helping to confront the most challenging problems in brain research, including the analysis of cellular and molecular mechanisms behind memory and cognition. Optical fibers of new generation offer new solutions for the development of fundamentally new, unique tools for neurophotonics and laser neuroengineering — fiber-optic neuroendoscopes and neurointerfaces. These instruments open new horizons for the investigation of the most complex brain functions, enabling a long-term multiplex detection of fluorescent protein markers, as well as photostimulation of neuronal activity in deep brain areas in living, freely behaving animals with an unprecedented spatial resolution and minimal invasiveness. This emerging technology opens new horizons for understanding learning and long-term memory through experiments with living, freely behaving mammals. Here, we offer a brief review of this rapidly growing field of research.

We wish the authors future success and hope to see more of their work in future!

Optical microfiber using HF etching

Thanks to the efforts of Anatoly Mikhalovich Shegeda the narrowing down of optical fiber down to 1.7 um has been achieved. The narrowing down is achieved due to the hydrofluoric acid etching. We are glad to share the photos with you.

Unaltered fiber approximately 120 um in diameter

Narrow part of the fiber, 1.7um width

Report by M.R. Mohebbifar at 14:00 on 30.03.2016

Tomorrow 30.03.2016 at 14:00 in Kazan Quantum Center M.R. Mohebbifar from Kazan Federal University will present his work titled

“The effect of quantum fluctuations of the interaction between quantum dots and fermionic reservoir on the wave functions and spectral characteristics of the emitted photons”

Specialty 01.04.05 Optics

Supervisor: Professor R. Kh. Gainutdinov

A new research paper by A. Gleym

Secure polarization-independent subcarrier quantum key distribution in optical fiber channel using BB84 protocol with a strong reference

Abstract: A quantum key distribution system based on the subcarrier wave modulation method has been demonstrated which employs the BB84 protocol with a strong reference to generate secure bits at a rate of 16.5 kbit/s with an error of 0.5% over an optical channel of 10 dB loss, and 18 bits/s with an error of 0.75% over 25 dB of channel loss. To the best of our knowledge, these results represent the highest channel loss reported for secure quantum key distribution using the subcarrier wave approach. A passive unidirectional scheme has been used to compensate for the polarization dependence of the phase modulators in the receiver module, which resulted in a high visibility of 98.8%. The system is thus fully insensitive to polarization fluctuations and robust to environmental changes, making the approach promising for use in optical telecommunication networks. Further improvements in secure key rate and transmission distance can be achieved by implementing the decoy states protocol or by optimizing the mean photon number used in line with experimental parameters.

 View at publisher’s website


Guest lecture by R. R. Nigmatullin

This Thursday at 10:00 on scientific seminar Ravil Rashidovich Nigmatullin will present his latest work titled

“General theory of experiment containing reproducible data: The reduction to an ideal experiment”

by R.R. Nigmatullin, proff at KNRTU-KAI, PhD

The authors suggest a general theory for consideration of all experiments associated with measurements of reproducible data in one unified scheme. The suggested algorithm does not contain unjustified suppositions and the final function that is extracted from these measurements can be compared with hypothesis that is suggested by the theory adopted for the explanation of the object/phenomenon studied. This true function is free from the influence of the apparatus (instrumental) function and when the ‘‘best fit’’, or the most acceptable hypothesis, is absent, can be presented as a segment of the Fourier series. The discrete set of the decomposition coefficients describes the final function quantitatively and can serve as an intermediate model that coincides with the amplitude-frequency response (AFR) of the object studied. It can be used by theoreticians also for comparison of the suggested theory with experimental observations. Two examples (Raman spectra of the distilled water and exchange by packets between two wireless sensor nodes) confirm the basic elements of this general theory. From this general theory the following
important conclusions follow:

1. The Prony’s decomposition should be used in detection of the quasi-periodic processes and for quantitative description of reproducible data.
2. The segment of the Fourier series should be used as the fitting function for description of observable data corresponding to an ideal experiment. The transition from the initial Prony’s decomposition to the conventional Fourier transform implies also the
elimination of the apparatus function that plays an important role in the reproducible data processing.
3. The suggested theory will be helpful for creation of the unified metrological standard (UMS) that should be used in comparison of similar data obtained from the same object studied but in different laboratories with the usage of different equipment. 4. Many cases when the conventional theory confirms the experimental data obtained from equipment (where the apparatus function was not taken into account) should be remeasured and some of the competitive theoretical hypothesis can be reconsidered, as

[1] R.R. Nigmatullin, W. Zhang and D. Striccoli. General theory of experiment containing reproducible data: The reduction to an ideal experiment. Communications in Nonlinear Science and Numerical Simulation, 27, (2015), pp 175-192.