Quantum criticality in the (Cr98.4Al1.6)100-Mo alloy system
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2019.04.144
Abstract: Abstract Indications of quantum critical behaviour (QCB), driven by electron-hole pair breaking effects through Mo doping of Cr98.4Al1.6 are reported. Previous studies on the electrical resistivity ( ρ ) , Seebeck coefficient ( S )… read more here.
Keywords: system; alloy system; 4al1 100; cr98 4al1 ... See more keywords
Giant isotropic magneto-thermal conductivity of metallic spin liquid candidate Pr2Ir2O7 with quantum criticality
Sign Up to like & getrecommendations! Published in 2021 at "Nature Communications"
DOI: 10.1038/s41467-020-20562-w
Abstract: Spin liquids are exotic states with no spontaneous symmetry breaking down to zero-temperature because of the highly entangled and fluctuating spins in frustrated systems. Exotic excitations like magnetic monopoles, visons, and photons may emerge from… read more here.
Keywords: spin; metallic spin; spin liquid; quantum criticality ... See more keywords
Engineering Quantum Criticality for Quantum Dot Power Harvesting
Sign Up to like & getrecommendations! Published in 2024 at "Chinese Physics Letters"
DOI: 10.1088/0256-307x/41/2/020503
Abstract: Coupling of quantum-dot circuits to microwave photons enables us to investigate photon-assisted quantum transport. Here, we revisit this typical circuit quantum electrodynamical setup by introducing the Kerr nonlinearity of photons. By exploiting quantum critical behavior,… read more here.
Keywords: quantum dot; quantum; power harvesting; quantum criticality ... See more keywords
Competing coherent and dissipative dynamics close to quantum criticality
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review A"
DOI: 10.1103/physreva.100.052108
Abstract: We investigate the competition of coherent and dissipative dynamics in many-body systems at continuous quantum transitions. We consider dissipative mechanisms that can be effectively described by Lindblad equations for the density matrix of the system.… read more here.
Keywords: coherent dissipative; competing coherent; dissipative dynamics; quantum criticality ... See more keywords
Measurement-induced quantum criticality under continuous monitoring
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.102.054302
Abstract: We investigate entanglement phase transitions from volume-law to area-law entanglement in a quantum many-body state under continuous position measurement on the basis of the quantum trajectory approach. We find the signatures of the transitions as… read more here.
Keywords: criticality; measurement induced; quantum criticality; induced quantum ... See more keywords
Quantum criticality preempted by nematicity
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.103.165129
Abstract: Exotic physics often emerges around quantum criticality in metallic systems. Here we explore the nature of topological phase transitions between 3D double-Weyl semimetals and insulators (through annihilating double-Weyl nodes with opposite chiralities) in the presence… read more here.
Keywords: double weyl; nematicity; semimetals insulators; quantum criticality ... See more keywords
Self-duality protected multicriticality in deconfined quantum phase transitions
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.104.205142
Abstract: Duality places an important constraint on the renormalization group flows and the phase diagrams. For self-dual theories, the self-duality can be promoted as a symmetry, this leads to the multicriticalities. This work investigates a description… read more here.
Keywords: duality; deconfined quantum; self duality; quantum criticality ... See more keywords
Scaling of the disorder operator at (2+1)d U(1) quantum criticality
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.104.l081109
Abstract: Yan-Cheng Wang,1 Meng Cheng,2, ∗ and Zi Yang Meng3, † 1School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China 2Department of Physics, Yale University, New Haven, CT 06520-8120, U.S.A… read more here.
Keywords: physics; scaling disorder; disorder operator; quantum criticality ... See more keywords
Quantum criticality and Kibble-Zurek scaling in the Aubry-André-Stark model
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review B"
DOI: 10.1103/physrevb.110.024207
Abstract: We explore quantum criticality and Kibble-Zurek scaling (KZS) in the Aubry-Andre-Stark (AAS) model, where the Stark field of strength $\varepsilon$ is added onto the one-dimensional quasiperiodic lattice. We perform scaling analysis and numerical calculations of… read more here.
Keywords: stark; quantum criticality; model; localization ... See more keywords
Quantum criticality in the infinite-range transverse field Ising model
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review B"
DOI: 10.1103/physrevb.110.075112
Abstract: We study quantum criticality in the infinite range Transverse-Field Ising Model. We find subtle differences with respect to the well-known single-site mean-field theory, especially in terms of gap, entanglement and quantum criticality. The calculations are… read more here.
Keywords: field; quantum; infinite range; quantum criticality ... See more keywords
Deconfined quantum criticality of frustrated hard-core dipolar bosons
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review B"
DOI: 10.1103/physrevb.111.054436
Abstract: Deconfined quantum critical points (DQCPs) are proposed as unconventional second-order phase transitions beyond the Landau-Ginzburg-Wilson paradigm. The nature and experimental realizations of DQCPs are crucial issues of importance. We illustrate the potential for DQCPs between… read more here.
Keywords: dqcps; hard core; deconfined quantum; quantum criticality ... See more keywords