Found 8 papers in prb
Date of feed: Sat, 06 Jan 2024 04:16:58 GMT

Search terms: (topolog[a-z]+)|(graphit[a-z]+)|(rhombohedr[a-z]+)|(graphe[a-z]+)|(chalcog[a-z]+)|(landau)|(weyl)|(dirac)|(STM)|(scan[a-z]+ tunne[a-z]+ micr[a-z]+)|(scan[a-z]+ tunne[a-z]+ spectr[a-z]+)|(scan[a-z]+ prob[a-z]+ micr[a-z]+)|(MoS.+\d+|MoS\d+)|(MoSe.+\d+|MoSe\d+)|(MoTe.+\d+|MoTe\d+)|(WS.+\d+|WS\d+)|(WSe.+\d+|WSe\d+)|(WTe.+\d+|WTe\d+)|(Bi\d+Rh\d+I\d+|Bi.+\d+.+Rh.+\d+.+I.+\d+.+)|(BiTeI)|(BiTeBr)|(BiTeCl)|(ZrTe5|ZrTe.+5)|(Pt2HgSe3|Pt.+2HgSe.+3)|(jacuting[a-z]+)|(flatband)|(flat.{1}band)|(LK.{1}99)

Third-order topological insulator induced by disorder
Hugo Lóio, Miguel Gonçalves, Pedro Ribeiro, and Eduardo V. Castro
Author(s): Hugo Lóio, Miguel Gonçalves, Pedro Ribeiro, and Eduardo V. Castro

We have found the first instance of a third-order topological Anderson insulator (TOTAI). This disorder-induced topological phase is gapped and characterized by a quantized octupole moment and topologically protected corner states, as revealed by a detailed numerically exact analysis. We also find t…


[Phys. Rev. B 109, 014204] Published Fri Jan 05, 2024

Nonreciprocal charge transport and subharmonic structure in voltage-biased Josephson diodes
A. Zazunov, J. Rech, T. Jonckheere, B. Grémaud, T. Martin, and R. Egger
Author(s): A. Zazunov, J. Rech, T. Jonckheere, B. Grémaud, T. Martin, and R. Egger

We study charge transport in voltage-biased single-channel junctions involving helical superconductors with finite Cooper pair momentum. For a Josephson junction, the equilibrium current-phase relation shows a superconducting diode effect: the critical current depends on the propagation direction. W…


[Phys. Rev. B 109, 024504] Published Fri Jan 05, 2024

Band-center metal-insulator transition in bond-disordered graphene
Naba P. Nayak, Surajit Sarkar, Kedar Damle, and Soumya Bera
Author(s): Naba P. Nayak, Surajit Sarkar, Kedar Damle, and Soumya Bera

We study the transport properties of a tight-binding model of noninteracting fermions with random hopping on the honeycomb lattice. At the particle-hole-symmetric chemical potential, the absence of diagonal disorder (random on-site potentials) places the system in the well-studied chiral orthogonal …


[Phys. Rev. B 109, 035109] Published Fri Jan 05, 2024

Tailoring topological nature of merging bound states in the continuum by manipulating structure symmetry of the all-dielectric metasurface
Guangcheng Sun, Yue Wang, Yaohe Li, Zijian Cui, Wenshuo Chen, and Kuang Zhang
Author(s): Guangcheng Sun, Yue Wang, Yaohe Li, Zijian Cui, Wenshuo Chen, and Kuang Zhang

Photonic bound states in the continuum (BIC) promise a versatile platform for construction of optical resonators with highly confined electromagnetic fields and ultralong radiative lifetime. Merging multiple BIC can enable suppression of out-of-plane radiative losses and further boost the quality (Q…


[Phys. Rev. B 109, 035406] Published Fri Jan 05, 2024

Complex semiclassical theory for non-Hermitian quantum systems
Guang Yang, Yong-Kang Li, Yongxu Fu, Zhenduo Wang, and Yi Zhang
Author(s): Guang Yang, Yong-Kang Li, Yongxu Fu, Zhenduo Wang, and Yi Zhang

Non-Hermitian quantum systems exhibit fascinating characteristics such as non-Hermitian topological phenomena and skin effects, yet their studies are limited by the intrinsic difficulties associated with their eigenvalue problems, especially in larger systems and higher dimensions. In Hermitian syst…


[Phys. Rev. B 109, 045110] Published Fri Jan 05, 2024

Theoretical determination of the effect of a screening gate on plasmon-induced superconductivity in twisted bilayer graphene
Liangtao Peng, Indra Yudhistira, Giovanni Vignale, and Shaffique Adam
Author(s): Liangtao Peng, Indra Yudhistira, Giovanni Vignale, and Shaffique Adam

The microscopic pairing mechanism for superconductivity in magic-angle twisted bilayer graphene remains an open question. Recent experimental studies seem to rule out a purely electronic mechanism due to the insensitivity of the critical superconducting temperature to either a highly doped screening…


[Phys. Rev. B 109, 045404] Published Fri Jan 05, 2024

Observation of acoustic Floquet π modes in a time-varying lattice
Zhao-xian Chen, An Chen, Yu-Gui Peng, Zheng-wei Li, Bin Liang, Jing Yang, Xue-Feng Zhu, Yan-qing Lu, and Jian-chun Cheng
Author(s): Zhao-xian Chen, An Chen, Yu-Gui Peng, Zheng-wei Li, Bin Liang, Jing Yang, Xue-Feng Zhu, Yan-qing Lu, and Jian-chun Cheng

Time modulation provides an important degree of freedom for classical wave steering in topological manners. Rather than using the spatial dimension to mimic time, here we design and implement an acoustic temporal lattice with time-varying couplings to demonstrate a unique type of strongly localized …


[Phys. Rev. B 109, L020302] Published Fri Jan 05, 2024

Braiding topology of symmetry-protected degeneracy points in non-Hermitian systems
Jia-Zheng Li, Kai Bai, Cheng Guo, Tian-Rui Liu, Liang Fang, Duanduan Wan, and Meng Xiao
Author(s): Jia-Zheng Li, Kai Bai, Cheng Guo, Tian-Rui Liu, Liang Fang, Duanduan Wan, and Meng Xiao

Degeneracy points in non-Hermitian systems are of great interest. While a homotopic framework exists for understanding their behavior in the absence of symmetry, it does not apply to symmetry-protected degeneracy points with reduced codimension. In this work, utilizing algebraic topology, we provide…


[Phys. Rev. B 109, L041102] Published Fri Jan 05, 2024

Found 1 papers in prx
Date of feed: Sat, 06 Jan 2024 04:16:56 GMT

Search terms: (topolog[a-z]+)|(graphit[a-z]+)|(rhombohedr[a-z]+)|(graphe[a-z]+)|(chalcog[a-z]+)|(landau)|(weyl)|(dirac)|(STM)|(scan[a-z]+ tunne[a-z]+ micr[a-z]+)|(scan[a-z]+ tunne[a-z]+ spectr[a-z]+)|(scan[a-z]+ prob[a-z]+ micr[a-z]+)|(MoS.+\d+|MoS\d+)|(MoSe.+\d+|MoSe\d+)|(MoTe.+\d+|MoTe\d+)|(WS.+\d+|WS\d+)|(WSe.+\d+|WSe\d+)|(WTe.+\d+|WTe\d+)|(Bi\d+Rh\d+I\d+|Bi.+\d+.+Rh.+\d+.+I.+\d+.+)|(BiTeI)|(BiTeBr)|(BiTeCl)|(ZrTe5|ZrTe.+5)|(Pt2HgSe3|Pt.+2HgSe.+3)|(jacuting[a-z]+)|(flatband)|(flat.{1}band)|(LK.{1}99)

Smectic and Soap Bubble Optofluidic Lasers
Zala Korenjak and Matjaž Humar
Author(s): Zala Korenjak and Matjaž Humar

Using a soap bubble, researchers have created a laser that could act as a sensitive sensor for environmental parameters including atmospheric pressure.


[Phys. Rev. X 14, 011002] Published Fri Jan 05, 2024

Found 1 papers in pr_res
Date of feed: Sat, 06 Jan 2024 04:16:56 GMT

Search terms: (topolog[a-z]+)|(graphit[a-z]+)|(rhombohedr[a-z]+)|(graphe[a-z]+)|(chalcog[a-z]+)|(landau)|(weyl)|(dirac)|(STM)|(scan[a-z]+ tunne[a-z]+ micr[a-z]+)|(scan[a-z]+ tunne[a-z]+ spectr[a-z]+)|(scan[a-z]+ prob[a-z]+ micr[a-z]+)|(MoS.+\d+|MoS\d+)|(MoSe.+\d+|MoSe\d+)|(MoTe.+\d+|MoTe\d+)|(WS.+\d+|WS\d+)|(WSe.+\d+|WSe\d+)|(WTe.+\d+|WTe\d+)|(Bi\d+Rh\d+I\d+|Bi.+\d+.+Rh.+\d+.+I.+\d+.+)|(BiTeI)|(BiTeBr)|(BiTeCl)|(ZrTe5|ZrTe.+5)|(Pt2HgSe3|Pt.+2HgSe.+3)|(jacuting[a-z]+)|(flatband)|(flat.{1}band)|(LK.{1}99)

First-principles study of topological invariants of Weyl points in continuous media
Guilherme R. Fonseca, Filipa R. Prudêncio, Mário G. Silveirinha, and Paloma A. Huidobro
Author(s): Guilherme R. Fonseca, Filipa R. Prudêncio, Mário G. Silveirinha, and Paloma A. Huidobro

A first-principles formalism that enables the topological characterization of Weyl points in three-dimensional dispersive photonic continua is introduced. The chirality of Weyl points is computed through gap Chern numbers and through direct computation of the Berry curvature, in both cases solely using the photonic Green’s function.


[Phys. Rev. Research 6, 013017] Published Fri Jan 05, 2024

Found 1 papers in sci-rep


Search terms: (topolog[a-z]+)|(graphit[a-z]+)|(rhombohedr[a-z]+)|(graphe[a-z]+)|(chalcog[a-z]+)|(landau)|(weyl)|(dirac)|(STM)|(scan[a-z]+ tunne[a-z]+ micr[a-z]+)|(scan[a-z]+ tunne[a-z]+ spectr[a-z]+)|(scan[a-z]+ prob[a-z]+ micr[a-z]+)|(MoS.+\d+|MoS\d+)|(MoSe.+\d+|MoSe\d+)|(MoTe.+\d+|MoTe\d+)|(WS.+\d+|WS\d+)|(WSe.+\d+|WSe\d+)|(WTe.+\d+|WTe\d+)|(Bi\d+Rh\d+I\d+|Bi.+\d+.+Rh.+\d+.+I.+\d+.+)|(BiTeI)|(BiTeBr)|(BiTeCl)|(ZrTe5|ZrTe.+5)|(Pt2HgSe3|Pt.+2HgSe.+3)|(jacuting[a-z]+)|(flatband)|(flat.{1}band)|(LK.{1}99)

Author Correction: Topological quantum criticality in non-Hermitian extended Kitaev chain
Sujit Sarkar

Scientific Reports, Published online: 05 January 2024; doi:10.1038/s41598-023-49938-w

Author Correction: Topological quantum criticality in non-Hermitian extended Kitaev chain

Found 1 papers in nat-comm


Search terms: (topolog[a-z]+)|(graphit[a-z]+)|(rhombohedr[a-z]+)|(graphe[a-z]+)|(chalcog[a-z]+)|(landau)|(weyl)|(dirac)|(STM)|(scan[a-z]+ tunne[a-z]+ micr[a-z]+)|(scan[a-z]+ tunne[a-z]+ spectr[a-z]+)|(scan[a-z]+ prob[a-z]+ micr[a-z]+)|(MoS.+\d+|MoS\d+)|(MoSe.+\d+|MoSe\d+)|(MoTe.+\d+|MoTe\d+)|(WS.+\d+|WS\d+)|(WSe.+\d+|WSe\d+)|(WTe.+\d+|WTe\d+)|(Bi\d+Rh\d+I\d+|Bi.+\d+.+Rh.+\d+.+I.+\d+.+)|(BiTeI)|(BiTeBr)|(BiTeCl)|(ZrTe5|ZrTe.+5)|(Pt2HgSe3|Pt.+2HgSe.+3)|(jacuting[a-z]+)|(flatband)|(flat.{1}band)|(LK.{1}99)

Animating hydrogel knotbots with topology-invoked self-regulation
< author missing >

Found 3 papers in comm-phys


Search terms: (topolog[a-z]+)|(graphit[a-z]+)|(rhombohedr[a-z]+)|(graphe[a-z]+)|(chalcog[a-z]+)|(landau)|(weyl)|(dirac)|(STM)|(scan[a-z]+ tunne[a-z]+ micr[a-z]+)|(scan[a-z]+ tunne[a-z]+ spectr[a-z]+)|(scan[a-z]+ prob[a-z]+ micr[a-z]+)|(MoS.+\d+|MoS\d+)|(MoSe.+\d+|MoSe\d+)|(MoTe.+\d+|MoTe\d+)|(WS.+\d+|WS\d+)|(WSe.+\d+|WSe\d+)|(WTe.+\d+|WTe\d+)|(Bi\d+Rh\d+I\d+|Bi.+\d+.+Rh.+\d+.+I.+\d+.+)|(BiTeI)|(BiTeBr)|(BiTeCl)|(ZrTe5|ZrTe.+5)|(Pt2HgSe3|Pt.+2HgSe.+3)|(jacuting[a-z]+)|(flatband)|(flat.{1}band)|(LK.{1}99)

Hosohedral nodal-line superconductivity in hexagonal ABC Dirac semimetals
Youngkuk Kim

Communications Physics, Published online: 05 January 2024; doi:10.1038/s42005-023-01501-9

Topological superconductivity is anticipated to provide an appropriate platform for realizing Majorana fermions, garnering significant interest for the development of quantum computing. Here, using DFT and many-body mean-field theory, the authors investigate the bulk superconductivity of KZnBi where their calculations suggest the presence of hosohedral nodal-line superconductivity.

Pseudospin-triplet pairing in iron-chalcogenide superconductors
Fu-Chun Zhang

Communications Physics, Published online: 05 January 2024; doi:10.1038/s42005-023-01495-4

The underlying symmetry of a given system dictates the material properties from the electronic band structure to its spontaneous symmetry broken ordering. Here, the authors consider the effects of symmetry breaking and investigate spin-singlet orbital triplet pairings in unconventional superconductors with electronic nematicity, they apply their results to iron-based superconductors and twisted bilayer graphene.

Topological atom optics and beyond with knotted quantum wavefunctions
Nicholas P. Bigelow

Communications Physics, Published online: 04 January 2024; doi:10.1038/s42005-023-01499-0

Knots are mathematically and physically complex objects that have only rarely been realized in quantum fluids and optics. The authors create knotted quantum wavefunctions of a spinor Bose gas and recognize a close mapping of the results to a recent realization of knots in the polarization of an optical field, exploring common features of topology: a topological atom optics.