Zobrazeno 1 - 10
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pro vyhledávání: '"Popov, A. K."'
Autor:
Popov, Fedor K.
We analyze the real-time dynamics of the large $N$ vector model, focusing on heavy states with energies of the order $N$. In this regime, we demonstrate that interactions become sufficiently strong to produce non-zero condensate of the Hubbard-Strato
Externí odkaz:
http://arxiv.org/abs/2411.02258
We introduce an effective field theory (EFT) for conformal impurity by considering a pair of transversely displaced impurities and integrating out modes with mass inversely proportional to the separation distance. This EFT captures the universal sign
Externí odkaz:
http://arxiv.org/abs/2406.01550
We study the operator algebra of extended conformal defects in more than two spacetime dimensions. Such algebra structure encodes the combined effect of multiple impurities on physical observables at long distances as well as the interactions among t
Externí odkaz:
http://arxiv.org/abs/2404.05815
Autor:
Almheiri, Ahmed, Popov, Fedor K.
Motivated by recent study of DSSYK and the non-commutative nature of its bulk dual, we review and analyze an example of a non-commutative spacetime known as the quantum disk proposed by L. Vaksman. The quantum disk is defined as the space whose isome
Externí odkaz:
http://arxiv.org/abs/2401.05575
We investigate finite-temperature observables in three-dimensional large $N$ critical vector models taking into account the effects suppressed by $1\over N$. Such subleading contributions are captured by the fluctuations of the Hubbard-Stratonovich a
Externí odkaz:
http://arxiv.org/abs/2309.02347
Autor:
Popov, Fedor K., Tarnopolsky, Grigory
We consider a configuration of three stacked graphene monolayers with commensurate twist angles $\theta_{12}/\theta_{23}=p/q$, where $p$ and $q$ are coprime integers with $0
Externí odkaz:
http://arxiv.org/abs/2305.16385
Autor:
Popov, Fedor K., Tarnopolsky, Grigory
We consider a configuration of three stacked graphene monolayers with equal consecutive twist angles $\theta$. Remarkably, in the chiral limit when interlayer coupling terms between $\textrm{AA}$ sites of the moir\'{e} pattern are neglected we find f
Externí odkaz:
http://arxiv.org/abs/2303.15505
Publikováno v:
Phys. Rev. Research 5, 043208, (2023)
In some quantum many-body systems, the Hilbert space breaks up into a large ergodic sector and a much smaller scar subspace. It has been suggested [arXiv:2007.00845] that the two sectors may be distinguished by their transformation properties under a
Externí odkaz:
http://arxiv.org/abs/2212.11914
In this work we present analytical and numerical evidences that classical integrable models possessing infinitely many degrees of freedom exhibit some features that are typical of chaotic systems. By studying how the conserved charges change under a
Externí odkaz:
http://arxiv.org/abs/2211.14150
Autor:
Milekhin, Alexey, Popov, Fedor K.
Publikováno v:
SciPost Phys. 17, 020 (2024)
We demonstrate that some quantum teleportation protocols exhibit measurement induced phase transitions in Sachdev-Ye-Kitaev model. Namely, Kitaev-Yoshida and Gao-Jafferis-Wall protocols have a phase transition if we apply them at a large projection r
Externí odkaz:
http://arxiv.org/abs/2210.03083