Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Upreti, Lavi K."'
Autor:
Stegmaier, Alexander, Brand, Hauke, Imhof, Stefan, Fritzsche, Alexander, Helbig, Tobias, Hofmann, Tobias, Boettcher, Igor, Greiter, Martin, Lee, Ching Hua, Bahl, Gaurav, Szameit, Alexander, Kießling, Tobias, Thomale, Ronny, Upreti, Lavi K.
Quantized adiabatic transport can occur when a system is slowly modulated over time. In most realizations however, the efficiency of such transport is reduced by unwanted dissipation, back-scattering, and non-adiabatic effects. In this work, we reali
Externí odkaz:
http://arxiv.org/abs/2306.15434
Autor:
Hohmann, Hendrik, Hofmann, Tobias, Helbig, Tobias, Imhof, Stefan, Brand, Hauke, Upreti, Lavi K., Stegmaier, Alexander, Fritzsche, Alexander, Müller, Tobias, Schwingenschlögl, Udo, Lee, Ching Hua, Greiter, Martin, Molenkamp, Laurens W., Kießling, Tobias, Thomale, Ronny
Publikováno v:
Phys. Rev. Research 5, L012041 (2023)
We observe a localized cnoidal (LCn) state in an electric circuit network. Its formation derives from the interplay of non-linearity and the topology inherent to a Su-Schrieffer-Heeger (SSH) chain of inductors. Varicap diodes act as voltage-dependent
Externí odkaz:
http://arxiv.org/abs/2206.09931
Autor:
Chen, Anffany, Brand, Hauke, Helbig, Tobias, Hofmann, Tobias, Imhof, Stefan, Fritzsche, Alexander, Kießling, Tobias, Stegmaier, Alexander, Upreti, Lavi K., Neupert, Titus, Bzdušek, Tomáš, Greiter, Martin, Thomale, Ronny, Boettcher, Igor
Publikováno v:
Nat. Commun. 14, 622 (2023)
Curved spaces play a fundamental role in many areas of modern physics, from cosmological length scales to subatomic structures related to quantum information and quantum gravity. In tabletop experiments, negatively curved spaces can be simulated with
Externí odkaz:
http://arxiv.org/abs/2205.05106
Autor:
Adiyatullin, Albert F., Upreti, Lavi K., Lechevalier, Corentin, Evain, Clement, Copie, Francois, Suret, Pierre, Randoux, Stephane, Delplace, Pierre, Amo, Alberto
Publikováno v:
Phys. Rev. Lett. 130, 056901 (2023)
The engineering of synthetic materials characterised by more than one class of topological invariants is one of the current challenges of solid-state based and synthetic materials. Using a synthetic photonic lattice implemented in a two-coupled ring
Externí odkaz:
http://arxiv.org/abs/2203.01056
Motivated by recent experimental breakthroughs in realizing hyperbolic lattices in superconducting waveguides and electric circuits, we compute the Hofstadter butterfly on regular hyperbolic tilings. By utilizing large hyperbolic lattices with period
Externí odkaz:
http://arxiv.org/abs/2111.05779
Autor:
Lenggenhager, Patrick M., Stegmaier, Alexander, Upreti, Lavi K., Hofmann, Tobias, Helbig, Tobias, Vollhardt, Achim, Greiter, Martin, Lee, Ching Hua, Imhof, Stefan, Brand, Hauke, Kießling, Tobias, Boettcher, Igor, Neupert, Titus, Thomale, Ronny, Bzdušek, Tomáš
Publikováno v:
Nat. Commun. 13, 4373 (2022)
The Laplace operator encodes the behavior of physical systems at vastly different scales, describing heat flow, fluids, as well as electric, gravitational, and quantum fields. A key input for the Laplace equation is the curvature of space. Here we di
Externí odkaz:
http://arxiv.org/abs/2109.01148
Autor:
Upreti, Lavi K., Delplace, P.
Publikováno v:
Phys. Rev. A 102, 023520 (2020)
We show how to engineer a chiral spectral flow of interface states in a gapless system. Although the bulk bands touch -- thus making the topological indices of the bands ill-defined -- this spectral flow has a topological origin that makes it robust
Externí odkaz:
http://arxiv.org/abs/2002.09374
Akademický článek
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Akademický článek
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Autor:
Adiyatullin, Albert F., Upreti, Lavi K., Lechevalier, Corentin, Evain, Clement, Copie, Francois, Suret, Pierre, Randoux, Stephane, Delplace, Pierre, Amo, Alberto
Topological materials are usually classified according to a single topological invariant. The engineering of synthetic structures characterised by more than one class of topological invariants would open the way to the combination of different topolo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::be6688a0a36c51efa33977e33ab53684
https://hal.science/hal-03865179
https://hal.science/hal-03865179