Quantum cryptography is the only known secret key sharing technique that can offer unconditional security. It is also compatible with the current state of technology. That is why it draws a lot of attention and has become the most mature direction among quantum technologies. Quantum key distribution (QKD) is now an active area of research that has made its way from theory to advanced technology for the last few decades.
There are two dedicated laboratories in our centre that deal with QKD: conventional fiber-based quantum cryptography and free-space quantum cryptography.
Scientific work in the quantum computing field goes in several directions: quantum computing on cold atoms, linear-optical quantum computing, quantum optics, precision and quantum measurements.
In this sector, scientists create platforms for quantum computers. Here, theoretical and computational problems related to the design of individual quantum gates and medium- to large-scale linear optical systems are solved; methods for preparing and measuring quantum states of light are being developed.
The department focuses on the nano-optics of various types of nanostructures, including metamaterials. This primarily includes the solution of fundamental problems related to excitation, amplification, and dynamics of plasmon-polaritons in ordered nanostructures, as well as in metamaterials. We use optical tweezers to study optical effects in individual nanoparticles. We explore ultrafast dynamics of light pulses to understand physical processes in nanostructures.
The department consists of three laboratories specializing in integral, resonance, and reconfiguration nanophotonics.
The development, fabrication, and study of single-atom structures are a continuation of work on creating classical and molecular single-electron devices, carried out in the "Cryoelectronics" laboratory of the Physics Faculty of M.V. Lomonosov Moscow State University since the end of the 80s. During this time, at the Faculty of Physics of Moscow State University, unique nanoelectronic devices have been developed and experimentally demonstrated: a single-electron memory cell with a single electron storage time of more than 8 hours, a single-electron transistor with a record charge sensitivity, the world's first molecular single-electron transistor operating at room temperature, and finally – a single-atom single-electron transistor with a base element approaching the physical limit.
In the Quantum Technology Centre, scientists continue experimental and theoretical studies of single-atom single-electron devices and are also engaged in the development and fabrication of nanoscale systems and devices.
The main scientific activity of MSU Quantum Technology Centre is the study of methods of experimental control over quantum systems. The centre's employees are engaged in developing prototypes of quantum devices for the secret information transfer and the implementation of quantum computing algorithms. The centre also investigates the nanophotonic and monoatomic single-electron devices development.