Zobrazeno 1 - 10
of 223
pro vyhledávání: '"Burin, Alexander A."'
Autor:
Burin, Alexander L., Rubtsov, Igor V.
Intramolecular energy transport is generally responsible for chemical energy balance in molecular systems. The transport is fast and efficient if energy is transferred by optical phonons in periodic oligomers, but its efficiently is limited by decohe
Externí odkaz:
http://arxiv.org/abs/2406.05541
Autor:
Nawagamuwage, Sithara U., Williams, Elliot S., Islam, Md Muhaiminul, Parshin, Igor V., Burin, Alexander L., Busschaert, Nathalie, Rubtsov, Igor V.
In an effort to increase the speed and efficiency of ballistic energy transport via oligomeric chains, we performed measurements of the transport in compounds featuring long alkyl chains of up to 37 methylene units. Compounds of the N3-(CH2)n-COOMe t
Externí odkaz:
http://arxiv.org/abs/2405.13776
Quantum two-level systems (TLSs) limit the performance of superconducting qubits and superconducting and optomechanical resonators breaking down the coherence and absorbing the energy of oscillations. TLS absorption can be suppressed or even switched
Externí odkaz:
http://arxiv.org/abs/2401.15624
Optical phonons serve as the fast and efficient carriers of energy across periodic polymers due to their delocalization, large group velocity because of covalent bonding and large energy quantum compared to that for acoustic phonons, as it was observ
Externí odkaz:
http://arxiv.org/abs/2305.08972
Publikováno v:
Phys. Rev. B 109, 174208 (2024)
Although it is recognized that Anderson localization takes place for all states at a dimension $d$ less or equal $2$, while delocalization is expected for hopping $V(r)$ decreasing with the distance slower or as $r^{-d}$, the localization problem in
Externí odkaz:
http://arxiv.org/abs/2205.14715
Autor:
Yu, Liuqi, Matityahu, Shlomi, Rosen, Yaniv J., Hung, Chih-Chiao, Maksymov, Andrii, Burin, Alexander L., Schechter, Moshe, Osborn, Kevin D.
Publikováno v:
Sci Rep 12, 16960 (2022)
Quantum two-level systems (TLSs) intrinsic to glasses induce decoherence in many modern quantum devices, such as superconducting qubits. Although the low-temperature physics of these TLSs is usually well-explained by a phenomenological standard tunne
Externí odkaz:
http://arxiv.org/abs/2110.10747
Autor:
Burin, Alexander L.
Stark many body localization problem on a periodic spin chain with local four spin hopping conserving dipole moment becomes equivalent to a spin pair hopping model after overturn of spins in odd or even positions. Eigenstates of the latter problem ar
Externí odkaz:
http://arxiv.org/abs/2110.08965
Autor:
Boulatov, Alexei, Burin, Alexander L.
The low temperature transport of electron, or vibrational or electronic exciton towards polymer chains turns out to be dramatically sensitive to its interaction with transverse acoustic vibrations. We show that this interaction leads to substantial p
Externí odkaz:
http://arxiv.org/abs/2009.06692
We investigate the effect of a metal plate on the variable range hopping (VRH) conductivity of a two dimensional electron-glass (EG) system. The VRH conductivity is known to have a stretched exponential dependence on temperature, with an exponent $p$
Externí odkaz:
http://arxiv.org/abs/2007.12137
Autor:
Churkin, Alexander, Matityahu, Shlomi, Maksymov, Andrii O., Burin, Alexander L., Schechter, Moshe
Publikováno v:
Phys. Rev. B 103, 054202 (2021)
Tunneling two-level systems (TLSs), generic to amorphous solids, dictate the low-temperature properties of amorphous solids and dominate noise and decoherence in quantum nano-devices. The properties of the TLSs are generally described by the phenomen
Externí odkaz:
http://arxiv.org/abs/2002.02877