[RpL 1138] Fwd: Open RQC Colloquium. Lecture 47

Пн Ноя 19 12:36:07 MSK 2018

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Subject: 	Open RQC Colloquium. Lecture 47
Date: 	Mon, 19 Nov 2018 09:13:37 +0000
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Open RQC Colloquium. Lecture 47

      *Open RQC colloquium. Lecture 47*

The Forty Seventh lecture *"TAlgorithmic simulation of 
far-from-equilibrium dynamics using superconducting quantum 
computer"* in Open RQC Colloquium will be held in National University of 
Science and Technology MISIS 
<https://rqc.us4.list-manage.com/track/click?u=8108e48f6c1a81eeb480bf510&id=9704bbf033&e=59b6fc1841> (Moscow, 
Leninsky Avenue, 4) conference hall № *Б-534*, *on 23d of November 
2018 at 10:00 a.m *by *Walter Pogosov*, Head of the Laboratory of 
Physics of Micro- and Nanostructures at Dukhov Research Institute of 
Automatics (Rosatom State Corporation).

*Abstract*

Quantum computers and simulators are prospective for the resolution of 
problems which are hard to solve using conventional computing systems. 
Among such problems a modelling of quantum systems, such as molecules, 
is one of the most important potential applications of quantum machines. 
In this lecture, the recent achievements in digital quantum simulation 
of quantum systems will be reviewed. It will be mentioned that quantum 
computers are prospective for the simulation of the dynamics of spin 
models far from equilibrium, including nonadiabatic phenomena and 
quenches. The important advantage of these machines is that they are 
programmable, so that different spin models can be simulated in the same 
chip, as well as various initial states can be encoded into it in a 
controllable way. Walter performs proof-of-principle digital simulations 
of two spin models, which are the central spin model and the 
transverse-field Ising model, using 5- and 16-qubit superconducting 
quantum computers of the IBM Quantum Experience available through the 
internet via the cloud service. Walter found that these devices are able 
to reproduce some important consequences of the symmetry of the initial 
state for the system's subsequent dynamics, such as the excitation 
blockade. However, lengths of algorithms are currently limited due to 
quantum gate errors. And there will be a discussion some heuristic 
methods which can be used to extract valuable information from imperfect 
experimental data.

*Biography*

Walter Pogosov is currently head of the Laboratory of Physics of Micro- 
and Nanostructures at Dukhov Research Institute of Automatics (Rosatom 
State Corporation). He graduated from the Faculty of General and Applied 
Physics of Moscow Institute of Physics and Technology in 1999 and 
obtained PhD in theoretical physics from the same Institute in 2002. In 
his thesis he focused on vortex matter in mesoscopic and unconventional 
superconductors. After completing his PhD, W. Pogosov conducted a 
postdoctoral research at the University of Leuven (Belgium) and Okayama 
University (Japan), where he worked on superconductor/ferromagnet 
heterostructures and on trapped ultracold gases. He came back to Russia 
in 2006 and got a position at the Institute for Theoretical and Applied 
Electrodynamics RAS, but continued a tight collaboration with French and 
Belgium researchers. During that time, he conducted a research on 
exactly solvable models in connection to Cooper pairing at nanoscale, on 
fluctuations in superconducting microstructures, as well as on quantum 
statistics of excitons. In 2014 W. Pogosov obtained a habilitation 
degree from Lebedev Physical Institute RAS and moved to Dukhov Research 
Institute of Automatics. He currently focuses on superconducting quantum 
circuits for quantum computation and simulation, quantum optics with 
superconducting qubits, as well as on topological 
insulator/superconductor heterostructures.

*Please don't forget to take passport for entering to the University. We 
will meet you at the guard desk.*

*FREE ENTRANCE. *

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