Edge State Quantum Interference in Twisted Graphitic Interfaces
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Science"
DOI: 10.1002/advs.202102261
Abstract: Zigzag edges in graphitic systems exhibit localized electronic states that drastically affect their properties. Here, room‐temperature charge transport experiments across a single graphitic interface are reported, in which the interlayer current is confined to the… read more here.
Keywords: quantum interference; state quantum; interference twisted; interference ... See more keywords
Two-State Quantum Systems Revisited: A Clifford Algebra Approach
Sign Up to like & getrecommendations! Published in 2021 at "Advances in Applied Clifford Algebras"
DOI: 10.1007/s00006-020-01116-1
Abstract: We revisit the topic of two-state quantum systems using the Clifford Algebra in three dimensions $$Cl_3$$ . In this description, both the quantum states and Hermitian operators are written as elements of $$Cl_3$$ . By… read more here.
Keywords: two state; state quantum; clifford algebra; approach ... See more keywords
Uniform Bound of the Entanglement for the Ground State of the Quantum Ising Model with Large Transverse Magnetic Field
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Statistical Physics"
DOI: 10.1007/s10955-020-02501-7
Abstract: We consider the ground state of the quantum Ising model with transverse field h in one dimension in a finite volume $$\begin{aligned} \Lambda {_{m}:=\{-m,-m+1,\ldots ,m+L\}.} \end{aligned}$$ Λ m : = { - m , -… read more here.
Keywords: quantum ising; state quantum; uniform bound; ising model ... See more keywords
Interaction of light and semiconductor can generate quantum states required for solid-state quantum computing: entangled, steered and other nonclassical states
Sign Up to like & getrecommendations! Published in 2019 at "Quantum Information Processing"
DOI: 10.1007/s11128-019-2344-0
Abstract: Proposals for solid-state quantum computing are extremely promising as they can be used to build room temperature quantum computers. If such a quantum computer is ever built, it would require built-in sources of nonclassical states… read more here.
Keywords: solid state; quantum; semiconductor; exciton ... See more keywords
Adiabatic following for a three-state quantum system
Sign Up to like & getrecommendations! Published in 2017 at "Optics Communications"
DOI: 10.1016/j.optcom.2016.07.067
Abstract: Abstract Adiabatic time-evolution – found in various forms of adiabatic following and adiabatic passage – is often advantageous for controlled manipulation of quantum systems due to its insensitivity to deviations in the pulse shapes and… read more here.
Keywords: state; quantum; adiabatic following; state quantum ... See more keywords
Hybrid Integration of Solid-State Quantum Emitters on a Silicon Photonic Chip.
Sign Up to like & getrecommendations! Published in 2017 at "Nano letters"
DOI: 10.1021/acs.nanolett.7b03220
Abstract: Scalable quantum photonic systems require efficient single photon sources coupled to integrated photonic devices. Solid-state quantum emitters can generate single photons with high efficiency, while silicon photonic circuits can manipulate them in an integrated device… read more here.
Keywords: solid state; quantum; state quantum; quantum emitters ... See more keywords
Excited-state quantum phase transitions
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Physics A: Mathematical and Theoretical"
DOI: 10.1088/1751-8121/abdfe8
Abstract: We review the effects of excited-state quantum phase transitions (ESQPTs) in interacting many-body systems with finite numbers of collective degrees of freedom. We classify typical ESQPT signatures in the spectra of energy eigenstates with respect… read more here.
Keywords: excited state; quantum phase; state quantum; phase transitions ... See more keywords
Excited-state quantum phase transition and the quantum-speed-limit time
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review A"
DOI: 10.1103/physreva.100.022118
Abstract: We investigate the influence of an excited-state quantum phase transition on the quantum-speed-limit time of an open quantum system. The system consists of a central qubit coupled to a spin environment modeled by a Lipkin-Meshkov-Glick… read more here.
Keywords: excited state; quantum phase; phase transition; state quantum ... See more keywords
Anharmonicity-induced excited-state quantum phase transition in the symmetric phase of the two-dimensional limit of the vibron model
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review A"
DOI: 10.1103/physreva.105.032215
Abstract: In most cases, excited state quantum phase transitions can be associated with the existence of critical points (local extrema or saddle points) in a system’s classical limit energy functional. However, an excited-state quantum phase transition… read more here.
Keywords: excited state; quantum phase; state quantum; state ... See more keywords
Excited-state quantum phase transitions studied from a non-Hermitian perspective
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review A"
DOI: 10.1103/physreva.95.010103
Abstract: A main distinguishing feature of non-Hermitian quantum mechanics is the presence of exceptional points (EPs). They correspond to the coalescence of two energy levels and their respective eigenvectors. Here, we use the Lipkin-Meshkov-Glick (LMG) model… read more here.
Keywords: quantum; excited state; phase transitions; state quantum ... See more keywords
Entanglement entropy and massless phase in the antiferromagnetic three-state quantum chiral clock model
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.95.014419
Abstract: The von Neumann entanglement entropy is used to estimate the critical point ${h}_{c}/J\ensuremath{\simeq}0.143(3)$ of the mixed ferro-antiferromagnetic three-state quantum Potts model $H={\ensuremath{\sum}}_{i}[J({X}_{i}{X}_{i+1}^{\phantom{\rule{0.16em}{0ex}}2}+{X}_{i}^{\phantom{\rule{0.16em}{0ex}}2}{X}_{i+1})\ensuremath{-}h\phantom{\rule{0.16em}{0ex}}{R}_{i}]$, where ${X}_{i}$ and ${R}_{i}$ are standard three-state Potts spin operators and $Jg0$ is… read more here.
Keywords: phase; ensuremath; state quantum; three state ... See more keywords