Zobrazeno 1 - 10
of 200
pro vyhledávání: '"Mudry, Christopher"'
Publikováno v:
SciPost Phys. 16, 022 (2024)
Lieb-Schultz-Mattis (LSM) theorems impose non-perturbative constraints on the zero-temperature phase diagrams of quantum lattice Hamiltonians (always assumed to be local in this paper). LSM theorems have recently been interpreted as the lattice count
Externí odkaz:
http://arxiv.org/abs/2308.00743
Autor:
Aksoy, Ömer M., Chandrasekaran, Anirudh, Tiwari, Apoorv, Neupert, Titus, Chamon, Claudio, Mudry, Christopher
Publikováno v:
Phys. Rev. B 107, 205129 (2023)
Fermi surfaces can undergo sharp transitions under smooth changes of parameters. Such transitions can have a topological character, as is the case when a higher-order singularity, one that requires cubic or higher-order terms to describe the electron
Externí odkaz:
http://arxiv.org/abs/2302.04877
Autor:
Aksoy, Ömer M., Mudry, Christopher
Publikováno v:
Phys. Rev. B 106, 035117 (2022)
Invertible fermionic topological (IFT) phases are gapped phases of matter with nondegenerate ground states on any closed spatial manifold. When open boundary conditions are imposed, nontrivial IFT phases support gapless boundary degrees of freedom. D
Externí odkaz:
http://arxiv.org/abs/2204.10333
Publikováno v:
Phys. Rev. B 104, 075146 (2021)
We prove two Lieb-Schultz-Mattis type theorems that apply to any translationally invariant and local fermionic $d$-dimensional lattice Hamiltonian for which fermion-number conservation is broken down to the conservation of fermion parity. We show tha
Externí odkaz:
http://arxiv.org/abs/2102.08389
Publikováno v:
Phys. Rev. B 103, 205121 (2021)
We study the stability of topological crystalline superconductors in the symmetry class DIIIR and in two-dimensional space when perturbed by quartic contact interactions. It is known that no less than eight copies of helical pairs of Majorana edge mo
Externí odkaz:
http://arxiv.org/abs/2101.11609
Autor:
Ma, Junzhang, Nie, Simin, Gui, Xin, Naamneh, Muntaser, Jandke, Jasmin, Xi, Chuanying, Zhang, Jinglei, Shang, Tian, Xiong, Yimin, Kapon, Itzik, Kumar, Neeraj, Soh, Yona, Gosálbez-Martínez, Daniel, Yazyev, Oleg V., Fan, Wenhui, Hübener, Hannes, De Giovannini, Umberto, Plumb, Nicholas Clark, Radovic, Milan, Sentef, Michael Andreas, Xie, Weiwei, Wang, Zhijun, Mudry, Christopher, Müller, Markus, Shi, Ming
Charge neutrality and their expected itinerant nature makes excitons potential transmitters of information. However, exciton mobility remains inaccessible to traditional optical experiments that only create and detect excitons with negligible momentu
Externí odkaz:
http://arxiv.org/abs/2009.07157
We argue that frequent sampling of the fraction of infected people (either by random testing or by analysis of sewage water), is central to managing the COVID-19 pandemic because it both measures in real time the key variable controlled by restrictiv
Externí odkaz:
http://arxiv.org/abs/2004.04614
Publikováno v:
Phys. Rev. B 99, 205153 (2019)
The phase diagram of the quantum spin-1/2 antiferromagnetic $J^{\,}_{1}$-$J^{\,}_{2}$ XXZ chain was obtained by Haldane using bosonization techniques. It supports three distinct phases for $0\leq J^{\,}_{2}/J^{\,}_{1}<1/2$, i.e., a gapless algebraic
Externí odkaz:
http://arxiv.org/abs/1903.05646
Autor:
Ok, Seulgi, Choo, Kenny, Mudry, Christopher, Castelnovo, Claudio, Chamon, Claudio, Neupert, Titus
Publikováno v:
Phys. Rev. Research 1, 033144 (2019)
We propose an exact construction for atypical excited states of a class of non-integrable quantum many-body Hamiltonians in one dimension (1D), two dimensions (2D), and three dimensins (3D) that display area law entanglement entropy. These examples o
Externí odkaz:
http://arxiv.org/abs/1901.01260
Publikováno v:
Phys. Rev. B 99, 184445 (2019)
We study a model in (2+1)-dimensional spacetime that is realized by an array of chains, each of which realizes relativistic Majorana fields in (1+1)-dimensional spacetime, coupled via current-current interactions. The model is shown to have a lattice
Externí odkaz:
http://arxiv.org/abs/1810.09858