Results 71 to 80 of about 173,599 (260)

Quantum Batteries: A Materials Science Perspective

Advanced Materials, EarlyView.
This perspective is focused on advanced materials that might allow the new device class of quantum batteries to be developed. These systems include microcavities with organic molecules, inorganic nanostructures and perovskites, and superconductor circuits.
Andrea Camposeo, Tersilla Virgili, Floriana Lombardi, Giulio Cerullo, Dario Pisignano, Marco Polini   +5 more
wiley   +1 more source

Lattice simulation with the Majorana positivity

EPJ Web of Conferences, 2018
While the sign problem of the Dirac fermion is conditioned by the semipositivity of a determinant, that of the Majorana fermion is conditioned by the semipositivity of a Pfaffian.
Yamamoto Arata, Hayata Tomoya
doaj   +1 more source

Van Der Waals Hybrid Integration of 2D Semimetals for Broadband Photodetection

Advanced Materials, EarlyView.
Advanced broadband photodetector technologies are essential for military and civilian applications. 2D semimetals, with their gapless band structures, high mobility, and topological protection, offer great promise for broadband PDs. This study reviews the latest advancements in broadband PDs utilizing heterostructures that combine 2D semimetals with ...
Xue Li, Kunxuan Liu, Di Wu, Pei Lin, Zhifeng Shi, Xinjian Li, Longhui Zeng, Yang Chai, Shu Ping Lau, Yuen Hong Tsang   +9 more
wiley   +1 more source

Missing final state puzzle in the monopole-fermion scattering

Physics Letters B, 2022
It has been known that when a charged fermion scatters off a monopole, the fermion in the s-wave component must flip its chirality, i.e., fermion number violation must happen.
Ryuichiro Kitano, Ryutaro Matsudo
doaj  

Prediction of an arc-tunable Weyl Fermion metallic state in MoxW1−xTe2 [PDF]

Nature Communications, 2015
A Weyl semimetal is a new state of matter that hosts Weyl fermions as emergent quasiparticles. The Weyl fermions correspond to isolated points of bulk band degeneracy, Weyl nodes, which are connected only through the crystal’s boundary by exotic Fermi ...
Tay-Rong Chang, Su-Yang Xu, G. Chang, Chi-Cheng Lee, Shin-Ming Huang, Baokai Wang, G. Bian, Hao Zheng, D. Sanchez, I. Belopolski, N. Alidoust, M. Neupane, A. Bansil, H. Jeng, Hsin Lin, M. Zahid Hasan   +15 more
semanticscholar   +1 more source

Intertwined Topological Phases in TaAs2 Nanowires with Giant Magnetoresistance and Quantum Coherent Surface Transport

Advanced Materials, EarlyView.
Synthesis of topological semimetal TaAs2 nanowires in situ encapsulated with a thin SiO2 shell unravel a richness of intertwined topological phases manifested by their magnetotransport features: A near‐room‐temperature metal‐to‐insulator transition, strong expressions of topologically nontrivial surface transport, giant magnetoresistance with direction‐
Anand Roy, Anna Eyal, Roni Majlin Skiff, Barun Barick, Samuel D. Escribano, Olga Brontvein, Katya Rechav, Ora Bitton, Roni Ilan, Ernesto Joselevich   +9 more
wiley   +1 more source

Discovery of a New Phase in Thin Flakes of KV3Sb5 under Pressure

Advanced Science, EarlyView.
The discovery of an unexpected new phase is reported in thin flake of KV3Sb5 under pressure. The new phase, alongside the CDW and superconducting phases, reveals an intriguing interplay between various novel phases in the kagome system. These findings suggest that this phase is related to nematicity, showcasing the kagome system's potential for ...
Zheyu Wang, Lingfei Wang, King Yau Yip, Ying Kit Tsui, Tsz Fung Poon, Wenyan Wang, Chun Wai Tsang, Shanmin Wang, David Graf, Alexandre Pourret, Gabriel Seyfarth, Georg Knebel, Kwing To Lai, Wing Chi Yu, Wei Zhang, Swee K. Goh   +15 more
wiley   +1 more source

Quantum operation of fermionic systems and process tomography using Majorana fermion gates [PDF]

arXiv, 2021
Quantum tomography is an important tool for the characterisation of quantum operations. In this paper, we present a framework of quantum tomography in fermionic systems. Compared with qubit systems, fermions obey the superselection rule, which sets constraints on states, processes and measurements in a fermionic system.
arxiv  

Giant Nonlinear Hall Effect Induced Ultrahigh Rectification in a Weyl Semiconductor

Advanced Electronic Materials, EarlyView.
Through the exploitation of the nonlinear Hall effect, an ultrahigh voltage responsivity (1.7×106 V W−1) is observed at room temperature in chiral tellurium nanosheets, a Weyl semiconductor with remarkable gate tunability. The voltage responsivity is orders of magnitude larger than those from other nonlinear Hall materials and even commercial Schottky ...
Hao Liu, Ting Yong Lim, Shijia Tian, Jinfeng Zhai, Du Xiang, Tao Liu, Tay‐Rong Chang, Pan He, Jian Shen   +8 more
wiley   +1 more source

The Continuum Limit of Causal Fermion Systems [PDF]

, 2016
This monograph introduces the basic concepts of the theory of causal fermion systems, a recent approach to the description of fundamental physics. The theory yields quantum mechanics, general relativity and quantum field theory as limiting cases and is ...
F. Finster
semanticscholar   +1 more source