4th International School on Quantum Technologies

Report on the 4th International School of Quantum Technologies (QTS’21)

The 4th international school on quantum technologies was held in the conference hall of the in the Voronovo settlement (New Moscow) from November 9 to 12, 2021.

The QTS’21 was attended by 81 people (17 lecturers, 9 speakers and 55 students, of which 17 people participated in the poster section). The School delivered 17 lectures on quantum computing, quantum optics, quantum cryptography and quantum technologies, 8 reports on the practical use of quantum technologies. Foreign lecturers delivered their lectures online.

Video recordings of lectures are available on the YouTube channel.

In addition to students, graduate students, and employees of scientific organizations, representatives of commercial organizations also participated in the work of the School: Infotecs, LLS, Concept Expert, ETM Photonics.

Distribution of participants by city:

QTS’21 PROGRAM

PHOTO ALBUM QTS’21

Our speakers

Tutorial

**Konstantin Katamadze**
Lomonosov Moscow State University
Valiev IPT RAS
**Looking through quantum optics**

**Konstantin Kravtsov**
*Lomonosov Moscow State University*
**Introduction to Quantum Cryptography**

Quantum computing

**Mark Saffman**
*University of Wisconsin-Madison*
**Running Quantum algorithms on a neutral atom processor**

**Alexey Ustinov**
Karlsruhe Institute of Technology,
NUST MISIS
**Material Defects in Superconducting Quantum Computers**

**Nikolay Kolachevsky**
Lebedev Physical Institute of RAS,
Moscow, Russia
**Quantum control of ions for quantum computations and frequency standards**

Quantum cryptography

**Artur Ekert**
*Centre for Quantum Technologies, Singapore*
**Privacy for the paranoid ones — the ultimate limits of secrecy**

**Vladimir Eliseev**
*InfoTeCS*
**Quantum key distribution: status and prospects**

Quantum optics

**Galiya Kitaeva**
*Lomonosov Moscow State University*
**Optical-terahertz biphotons**

**Andrew Forbes**
*University of the Witwatersrand, Johannesburg, South Africa*
**Structured quantum light**

**Andrey Turlapov**
Institute of Applied Physics
of the RAS, Russia, Nizhny Novgorod
**Ultracold fermions**

**Sergey Filippov**
Steklov Mathematical Institute,
Russia, Moscow
**New trends in the description of non-Markovian quantum processes**

**Anton Zeilinger**
*Institute for Quantum Optics and Quantum Information Vienna*
**From Entangled Quantum Puzzles to Quantum Information**

Quantum technologies

**Alexey Odinokov**
*Lomonosov Moscow State University*
**International ranking of quantum communications**

**Zakharii Krasilnik**
The Institute for Physics of Microstructures
of the RAS, Russia, Nizhny Novgorod
**Silicon qubit: a challenge for silicon nanotechnology**

Sponsors session

**Alexander Glazkov**
*Viavi Solutions*
**Quantum encryption test methods in fiber optics**

**Jose Luis Preciado, Gabe Lenetsky**
*Keysight Technologies, Spain*
**Practical aspects of RF and uW measurements in Quantum Communications and Quantum Sensing**

**Ludmila Kudryashova**
*Swabian Instruments GmbH*
**Time-to-digital conversion of fast signals in quantum optics**

Francois Richou
Regional Sales Channel Manager
**Next-generation photonic technologies for the quantum internet**

Sergey Mosentsov

ЛЛС

Novelties and unique solutions in the field of quantum communications

Reinhold Noe, Benjamin Koch

Novoptel GmbH, Paderborn, and Paderborn University, Germany

Polarization handling solutions usable for QKD

Olga Stroh-Vasenev

Laser Components Germany GmbH

Single Photon Detectors for QKD

Демо стенды по квантовой криптографии

Во время работы Школы желающие ознакомились с принципами работы двух демо стендов.

Взлом детектора одиночных фотонов

Демо показывает, как тестировать детекторы одиночных фотонов на атаку ослеплением в лабораторных условиях. Если детекторы могут быть ослеплены, то система квантовой передачи ключа, использующая такие детекторы, не может считаться надежной (мы покажем, почему) [1]. Несмотря на то что атака известна уже более 10 лет, эта лазейка в защите до сих полностью не закрыта.

[1] L. Lydersen et al., Nat. Photonics 4, 686 (2010).

Волоконно-оптическая система квантовой передачи ключа

Демо показывает оптическую схему квантовой передачи ключа с автокомпенсацией (или так называемой «plug-and-play») [2]. Вы увидите, как выполнены процедуры временной и прочих калибровок для достижения надлежащей синхронизации сигналов между Алисой и Бобом.

[2] D. Stucki et al., New J. Phys. 4, 41 (2002).

POSTER SESSION

Venue

108 830, Moscow, Voronovo, HSE Education Center