Zobrazeno 1 - 10
of 1 349
pro vyhledávání: '"A A Kalachev"'
Autor:
Panteleev, Pavel, Kalachev, Gleb
We study sheaf codes, a type of linear codes with a fixed hierarchical collection of local codes, viewed as a sheaf of vector spaces on a finite topological space we call coded space. Many existing codes, such as tensor product codes, Sipser-Spielman
Externí odkaz:
http://arxiv.org/abs/2403.03651
Publikováno v:
New Journal of Physics, Vol 20, Iss 2, p 023044 (2018)
We explore optical coherence and spin dynamics of an isotopically purified ^166 Er: ^7 LiYF _4 crystal below 1 K and at weak magnetic fields < 0.3T. Crystals were grown in our lab and demonstrate narrow inhomogeneous optical broadening down to 16 MHz
Externí odkaz:
https://doaj.org/article/867be6af7a3e451c97425a42225c85e5
A new version of quantum hashing technique is developed wherein a quantum hash is constructed as a sequence of single-photon high-dimensional states (qudits). A proof-of-principle implementation of the high-dimensional quantum hashing protocol using
Externí odkaz:
http://arxiv.org/abs/2210.10501
Autor:
Ovsyannikov, G. A., Constantinian, K. Y., Shmakov, V. A., Klimov, A. L., Kalachev, E. A., Shadrin, A. V., Andreev, N. V., Milovich, F. O., Orlov, A. P., Lega, P. V.
We present results on experimental studies of spin current, measured under spin pumping at ferromag-netic resonance in wide frequency band 2-20 GHz for SrIrO3/La0.7Sr0.3MnO3 heterostructures fabricated by RF magnetron sputtering at high temperature.
Externí odkaz:
http://arxiv.org/abs/2208.12163
Autor:
Muravev, Aleksandr D., Ivanov, Andrei V., Mukhanov, Vladimir A., Pokholok, Konstantin V., Vasiliev, Alexander V., Kazin, Pavel E., Sividova, Viktoria D., Maksimova, Natalia V., Kalachev, Igor L., Avdeev, Victor V.
Publikováno v:
In Journal of Alloys and Compounds 25 September 2024 1000
Autor:
Panteleev, Pavel, Kalachev, Gleb
We study classical and quantum LDPC codes of constant rate obtained by the lifted product construction over non-abelian groups. We show that the obtained families of quantum LDPC codes are asymptotically good, which proves the qLDPC conjecture. Moreo
Externí odkaz:
http://arxiv.org/abs/2111.03654
Quantum hashing is a promising generalization of the cryptographic hashing concept on the quantum domain. In this paper, we construct a quantum hash via a sequence of single-photon states and perform a proof-of-principle experiment using orbital angu
Externí odkaz:
http://arxiv.org/abs/2110.08535
Autor:
McCauley, Mark E., McCauley, Peter, Kalachev, Leonid V., Riedy, Samantha M., Banks, Siobhan, Ecker, Adrian J., Dinges, David F., Van Dongen, Hans P.A.
Publikováno v:
In Journal of Theoretical Biology 7 August 2024 590
Autor:
Sitdikov, T. R., Kalachev, G. V.
In this paper we research a model of multilayer circuits with a single logical layer. We consider $\lambda$-separable graphs as a support for circuits. We establish the Shannon function lower bound $\max \bigl(\frac{2^n}{n}, \frac{2^n (1 - \lambda)}{
Externí odkaz:
http://arxiv.org/abs/2103.07692
Autor:
Panteleev, Pavel, Kalachev, Gleb
We give a construction of quantum LDPC codes of dimension $\Theta(\log N)$ and distance $\Theta(N/\log N)$ as the code length $N\to\infty$. Using a product of chain complexes this construction also provides a family of quantum LDPC codes of distance
Externí odkaz:
http://arxiv.org/abs/2012.04068