中文
相关论文

相关论文: Extracting phase information about the superconduc…

200 篇论文

We study the local density of states around potential scatterers in d-wave superconductors, and show that quantum interference between impurity states is not negligible for experimentally relevant impurity concentrations. The two impurity…

超导电性 · 物理学 2009-11-10 W. A. Atkinson , P. J. Hirschfeld , Lingyin Zhu

We show that characteristics of the electron's form factor in two-dimensional materials are observable in quasiparticle interference (QPI) spectrum. We study QPI in twisted bilayer graphene using real-space tight-binding calculations…

介观与纳米尺度物理 · 物理学 2025-09-16 D. -H. -Minh Nguyen , Francisco Guinea , Dario Bercioux

We investigate quasiparticle interference on an altermagnetic Lieb-like lattice and show how a non-spin-polarized scanning tunneling microscopy measurement can yield effectively spin-resolved information. Within a four-site tight-binding…

强关联电子 · 物理学 2026-01-15 Eric Petermann , Kristian Mæland , Björn Trauzettel

We investigate the temperature dependence of quasiparticle interference in the high $T_c$-cuprates using an Exact-Diagonalization + Monte-Carlo based scheme to simulate the $d$-wave superconducting order parameter. The quasiparticle…

超导电性 · 物理学 2022-12-19 Harun Al Rashid , Garima Goyal , Alireza Akbari , Dheeraj Kumar Singh

We consider a disordered quantum metamaterial formed by an array of superconducting flux qubits coupled to microwave photons in a cavity. We map the system on the Tavis-Cummings model accounting for the disorder in frequencies of the…

超导电性 · 物理学 2015-07-08 Dmitriy S. Shapiro , Pascal Macha , Alexey N. Rubtsov , Alexey V. Ustinov

Quasiparticle interference (QPI) imaging is a powerful tool for probing electronic structures in quantum materials, but extracting the single-scatterer QPI pattern (i.e., the kernel) from a multi-scatterer image remains a fundamentally…

机器学习 · 计算机科学 2026-02-16 Yingshuai Ji , Haomin Zhuang , Matthew Toole , James McKenzie , Xiaolong Liu , Xiangliang Zhang

Symmetry breaking underlies diverse phenomena from phase transitions in condensed matter to fundamental interactions in gauge theories. Despite many proposed indicators, a general quantification of symmetry breaking that is faithful,…

统计力学 · 物理学 2025-09-10 Shion Yamashika , Shimpei Endo , Hiroyasu Tajima

In coherent diffraction imaging (CDI) experiments, the intensity of the scattered wave impinging on an object is measured on an array of detectors. This signal can be interpreted as the square of the modulus of the Fourier transform of the…

The Extended Fermi-Hubbard model is a rather studied Hamiltonian due to both its many applications and a rich phase diagram. Here we prove that all the phase transitions encoded in its one dimensional version are detectable via non-local…

量子气体 · 物理学 2017-12-13 L. Barbiero , S. Fazzini , A. Montorsi

In this paper we explore the behavior of the quasi-particle interference pattern (QPI) of scanning tunneling microscopy as a function of temperature, $T$. After insuring a minimal consistency with photoemission, we find that the QPI pattern…

超导电性 · 物理学 2009-10-19 Dan Wulin , Yan He , Chih-Chun Chien , Dirk K. Morr , K. Levin

Quantitative UltraSound (QUS) aims to reveal information about the tissue microstructure using backscattered echo signals from clinical scanners. Among different QUS parameters, scatterer number density is an important property that can…

图像与视频处理 · 电气工程与系统科学 2022-01-19 Ali K. Z. Tehrani , Ivan M. Rosado-Mendez , Hassan Rivaz

It is straightforward to calculate the conductance of a quantum device once all its scattering centers are fully specified. However, to do this in reverse, i.e., to find information about the composition of scatterers in a device from its…

介观与纳米尺度物理 · 物理学 2022-02-25 S. Mukim , F. P. Amorim , A. R. Rocha , R. B. Muniz , C. Lewenkopf , M. S. Ferreira

We use the quantum Fisher information (QFI) to diagnose a dynamical phase transition (DPT) in a closed quantum system, which is usually defined in terms of non-analytic behaviour of a time-averaged order parameter. Employing the…

量子物理 · 物理学 2021-09-08 Qingze Guan , Robert J. Lewis-Swan

The Fourier-transform scanning tunneling spectroscopy (FTSTS) contains rich signals related to the quasiparticle scattering interference and/or the density-wave-like orders which are crucial in interpretation of the ground states and the…

超导电性 · 物理学 2012-02-01 Jhinhwan Lee

This Letter deals with the time evolution of a qubit weakly coupled to a reservoir which has a symmetry broken state with long range order at finite temperatures. In particular, we model the ordered reservoir by a standard BCS…

介观与纳米尺度物理 · 物理学 2013-04-16 Juliana Restrepo , S. Camalet , R. Chitra

There is growing evidence that the unconventional spatial inhomogeneities in the doped high-Tc superconductors are accompanied by the pairing of electrons, subsequent quantum phase transitions (QPTs), and condensation in coherent states. We…

强关联电子 · 物理学 2012-11-12 Kun Fang , G. W. Fernando , A. V. Balatsky , A. N. Kocharian , Kalum Palandage

We discuss fluctuating order in a quantum disordered phase proximate to a quantum critical point, with particular emphasis on fluctuating stripe order. Optimal strategies for extracting information concerning such local order from…

强关联电子 · 物理学 2009-11-07 S. A. Kivelson , E. Fradkin , V. Oganesyan , I. P. Bindloss , J. M. Tranquada , A. Kapitulnik , C. Howald

A new method of quantum state tomography for quantum information processing is described. The method based on two-dimensional Fourier transform technique involves detection of all the off-diagonal elements of the density matrix in a…

量子物理 · 物理学 2009-11-07 Ranabir Das , T. S. Mahesh , Anil Kumar

It is usually argued that the presence of gapless quasiparticle excitations at the nodes of the d-wave superconducting gap should strongly decohere the quantum states of a d-wave qubit, making quantum effects practically unobservable. Using…

超导电性 · 物理学 2009-11-10 M. H. S. Amin , A. Yu. Smirnov

A physical system exposes to us in a real space, while its description often refers to its reciprocal momentum space. A connection between them can be established by exploring patterns of quasiparticles interference (QPI), which is…

介观与纳米尺度物理 · 物理学 2019-11-13 Dan-Bo Zhang , Qiang Han , Z. D. Wang
‹ 上一页 1 8 9 10 下一页 ›