Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Falko Pientka"'
Publikováno v:
New Journal of Physics, Vol 24, Iss 12, p 129501 (2022)
Externí odkaz:
https://doaj.org/article/d56dc6e764304dafaa4ed70c9e6f48db
Publikováno v:
New Journal of Physics, Vol 23, Iss 11, p 113009 (2021)
We demonstrate a remarkable property of metallic Fermi liquids: the transverse conductivity assumes a universal value in the quasi-static ( ω → 0) limit for wavevectors q in the regime ${l}_{\text{mfp}}^{-1}\ll q\ll {p}_{\text{F}}$ , where l _mfp
Externí odkaz:
https://doaj.org/article/bd2ebb3e078d4397894ccccb4de72504
Publikováno v:
Physical Review X, Vol 9, Iss 4, p 041019 (2019)
Mobile quantum impurities interacting with a fermionic bath form quasiparticles known as Fermi polarons. We demonstrate that a force applied to the bath particles can generate a drag force of similar magnitude acting on the impurities, realizing a no
Externí odkaz:
https://doaj.org/article/9cfb026cd22b4b12a331695bf96c7699
Publikováno v:
Physical Review X, Vol 7, Iss 2, p 021032 (2017)
We consider a two-dimensional electron gas with strong spin-orbit coupling contacted by two superconducting leads, forming a Josephson junction. We show that in the presence of an in-plane Zeeman field, the quasi-one-dimensional region between the tw
Externí odkaz:
https://doaj.org/article/bd8338b64ff746a9bf3a780fa3da45ac
Publikováno v:
New Journal of Physics, Vol 15, Iss 2, p 025001 (2013)
We investigate Josephson currents in mesoscopic rings with a weak link which are in or near a topological superconducting phase. As a paradigmatic example, we consider the Kitaev model of a spinless p-wave superconductor in one dimension, emphasizing
Externí odkaz:
https://doaj.org/article/bfcb28aedff1494b948ec8606aba94c1
Autor:
Falko Pientka, Liang Jiang, David Pekker, Jason Alicea, Gil Refael, Yuval Oreg, Felix von Oppen
Publikováno v:
New Journal of Physics, Vol 15, Iss 11, p 115001 (2013)
A prominent signature of Majorana bound states is the exotic Josephson effects they produce, the classic example being a fractional Josephson current with 4 π periodicity in the phase difference across the junction. Recent work established that topo
Externí odkaz:
https://doaj.org/article/44b68272590d4f29a90b4a977ba52bb6
Autor:
Daisuke Shindo, Na Hyun Jo, Loi T. Nguyen, Young Jae Shin, Robert J. Cava, Paul C. Canfield, K. Harada, Önder Gül, Hiroshi Idzuchi, K.-F. Huang, Falko Pientka, Philip Kim
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
In two-dimensional (2D) NbSe2 crystal, which lacks inversion symmetry, strong spin-orbit coupling aligns the spins of Cooper pairs to the orbital valleys, forming Ising Cooper pairs (ICPs). The unusual spin texture of ICPs can be further modulated by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e913bc3eef7e3f25546bc9a0bfe14a09
https://doaj.org/article/27f43f9ee23e49b79569605fd950fba9
https://doaj.org/article/27f43f9ee23e49b79569605fd950fba9
Publikováno v:
Physical Review B. 106
We study the transverse electrical conductivity and the corresponding magnetic noise of a two-dimensional U(1) spin liquid state with a spinon Fermi surface. We show that in the quasi-static regime these responses have the same wave-vector dependence
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec1e3270f10ca05ae06e997362944d0a
https://doi.org/10.1103/physrevb.106.115108
https://doi.org/10.1103/physrevb.106.115108
Publikováno v:
New Journal of Physics
We demonstrate a remarkable property of metallic Fermi liquids: the transverse conductivity assumes a universal value in the quasi-static ($\omega \rightarrow 0$) limit for wavevectors $q$ in the regime $l_{\rm mfp}^{-1} \ll q \ll p_{\rm F}$, where $
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6e43a8a911e51a69d51958a065eed29
Publikováno v:
Physical Review B
Unlike classical fluids, a quantum Fermi liquid can support a long-lived and propagating shear sound wave at arbitrarily small wave vectors and frequencies, reminiscent of the transverse sound in crystals, despite lacking any form of long-range cryst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ed02c167da9097e509ef34ed93061c6
https://doi.org/10.1103/physrevb.102.085437
https://doi.org/10.1103/physrevb.102.085437