Zobrazeno 1 - 10
of 187
pro vyhledávání: '"P Pöpperl"'
Effect of measurements on interacting fermionic systems with particle-number conservation, whose dynamics is governed by a time-independent Hamiltonian, is studied. We develop Keldysh field-theoretical framework that provides a unified approach to ob
Externí odkaz:
http://arxiv.org/abs/2410.07334
Publikováno v:
Phys. Rev. Research 6, 013313 (2024)
We study the statistical properties of a single two-level system (qubit) subject to repetitive ancilla-based measurements. This setup is a fundamental minimal model for exploring the intricate interplay between the unitary dynamics of the system and
Externí odkaz:
http://arxiv.org/abs/2310.01997
Publikováno v:
Phys. Rev. X 13, 041046 (2023)
We develop an analytical approach to the study of one-dimensional free fermions subject to random projective measurements of local site occupation numbers, based on the Keldysh path-integral formalism and replica trick. In the limit of rare measureme
Externí odkaz:
http://arxiv.org/abs/2304.03138
We study the dynamics of a monitored single particle in a one-dimensional, Anderson-localized system. The time evolution is governed by Hamiltonian dynamics for fixed time intervals, interrupted by local, projective measurements. The competition betw
Externí odkaz:
http://arxiv.org/abs/2211.06350
Dynamics of the imbalance in occupations on even and odd sites of a lattice serves as one of the key characteristics for identification of the many-body localization transition. In this work, we investigate the long-time behaviour of the imbalance in
Externí odkaz:
http://arxiv.org/abs/2202.01485
Autor:
Brehm, Jan David, Pöpperl, Paul, Mirlin, Alexander D., Shnirman, Alexander, Stehli, Alexander, Rotzinger, Hannes, Ustinov, Alexey V.
Random scattering of photons in disordered one-dimensional solids gives rise to an exponential suppression of transmission, which is known as Anderson localization. Here, we experimentally study Anderson localization in a superconducting waveguide qu
Externí odkaz:
http://arxiv.org/abs/2105.11729
Autor:
Pöpperl, Paul, Doggen, Elmer V. H., Karcher, Jonas F., Mirlin, Alexander D., Tikhonov, Konstantin S.
We explore dynamics of disordered and quasi-periodic interacting lattice models using a self-consistent time-dependent Hartree-Fock (TDHF) approximation, accessing both large systems (up to $L = 400$ sites) and very long times (up to $t = 10^5$). We
Externí odkaz:
http://arxiv.org/abs/2101.07018
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High performance ultrasonic sensor hardware is mainly used in medical applications. Although, the development in automotive scenarios is towards autonomous driving, the ultrasonic sensor hardware still stays low-cost and low-performance, respectively
Externí odkaz:
http://arxiv.org/abs/1902.09839
Recently, realistic data augmentation using neural networks especially generative neural networks (GAN) has achieved outstanding results. The communities main research focus is visual image processing. However, automotive cars and robots are equipped
Externí odkaz:
http://arxiv.org/abs/1902.09842