Frustration and quantum criticality

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August undefined, 2024

WebMotivated by the importance of entanglement and correlation indicators in the analysis of quantum systems, we study the equilibrium and the bipartite residual entropy in a two-species Bose–Hubbard dimer when the spatial phase separation of the two species takes place. We consider both the zero and non-zero-temperature regime. We present different … WebFrustration and quantum criticality in A-site spinel antiferromagnets EN English Deutsch Français Español Português Italiano Român Nederlands Latina Dansk Svenska Norsk Magyar Bahasa Indonesia Türkçe Suomi Latvian …

(PDF) Characteristic signatures of quantum criticality driven by ...

WebCombining quantum criticality with topological electronic properties presents a rare and unique opportunity. Here, by means of ab initio calculations and magnetic, thermal, and transport measurements, it is shown that the orthorhombic CoTe 2 is close to ferromagnetism, which appears suppressed by spin fluctuations. WebMar 1, 2024 · CeRhSn with a quasikagome lattice of Ce atoms in the hexagonal c plane has been expected to be in close vicinity to a zero-field quantum criticality derived from magnetic frustration. clips of sonic the hedgehog

Geometric Frustration and Dimensional Reduction at a Quantum Critical …

WebAbstract. We report on a systematic study of two-dimensional, periodic, frustrated Ising models with quantum dynamics introduced via a transverse magnetic field. The systems studied are the triangular and kagomé lattice antiferromagnets, fully frustrated models on the square and hexagonal (honeycomb) lattices, a planar analog of the pyrochlore ... WebJul 12, 2024 · Employing the self-learning quantum Monte Carlo algorithm, we investigate the frustrated transverse-field triangle-lattice Ising model coupled to a Fermi surface. … WebMay 8, 2024 · In both cases, frustration can either induce exotic phases accompanied by exotic quantum critical points or lead to conventional ordering with unconventional crossover phenomena. In addition, the competition of multiple phases inherent to … bobtail precio

Charge Frustration and Quantum Criticality for Strongly Correlated Fermions

兰州大学机构知识库(兰州大学机构库): Two-dimensional quantum …

WebMar 10, 2010 · Sometimes, a little frustration can make life interesting. This is true in physics, where frustration often leads to exotic properties of materials. ... Spin–orbital quantum criticality in FeSc ... WebApr 24, 2015 · Fifth, the observed insensitivity of quantum criticality to initial c axis uniaxial pressure, which retains the geometrical frustration, suggests a quantum critical phase in CeRhSn. Measurements under true uniaxial pressure of the order of kilobars, which is sufficient to substantially modify geometrical frustration and presumably induce long ... bobtail proportioning valve functionWebA rigorous mathematical result is established which relates quantum ground states to certain tiling configurations on the square lattice which implies that the number of ground states grows exponentially with the linear dimensions of the system. We study a model of strongly correlated electrons on the square lattice which exhibits charge frustration and … bobtail puppy food

"WebNov 17, 2014 · Geometric Frustration and DimensionalReduction at a Quantum Critical Point Conventional dimensional crossover involves the reduction in effective dimensionality away from a critical point (CP) in highly anisotropic systems -- sufficiently close to the CP, the full dimensionality is restored. In contrast, dimensional reduction can occur in … " - Frustration and quantum criticality

Frustration and quantum criticality

Quantum criticality in a metallic spin liquid Nature …

WebSep 30, 2024 · Nature Physics - A phase of quantum-critical behaviour is observed in a kagome lattice material. This arises from the interplay of strong interactions between electrons, and the frustration that... WebThe newly discovered quantum criticality and fractional magnetization phase in this ideal spin-1/2 TAF present exciting opportunities for exploring exotic quantum phenomena. 关键词: quantum criticality quantum magnet neutron scattering spin frustration universal scaling: 出版者: NATL ACAD SCIENCES DOI: 10.1073/pnas.2211193119: 收录 ...

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WebMay 3, 2011 · Taking account of the fact that a magnetic field induces a Fermi-liquid behavior, the quantum criticality for pure ${\mathrm{Fe}}_{3}{\mathrm{Mo}}_{3}\mathrm{N}$ appears to be dominated by the ... WebMar 15, 2024 · This website requires cookies, and the limited processing of your personal data in order to function. By using the site you are agreeing to this as outlined in our privacy notice and cookie policy.

WebJul 15, 2024 · It has been found that in case of Ho 2 Ti 2 O 7, where quantum critical region existed up to ∼28.5 K, both single ion spin freezing (T f) and spin ice freezing (T ice) ... Frustration and quantum criticality. Rep. Prog. Phys., 81 (2024), Article 064501, 10.1088/1361-6633/aab6be. WebIn both cases, frustration can either induce exotic phases accompanied by exotic quantum critical points or lead to conventional ordering with unconventional crossover …

WebMar 21, 2014 · As a result, in the presence of Kondo interactions, already a moderately strong frustration can induce quantum criticality by suppression of magnetic order to zero temperature. A line of quantum ... WebQuantum criticality and electronic localization–delocalization. In heavy fermion quantum criticality, the physics of Kondo destruction plays an essential role (Fig. 8a,b). From the critical ...

WebApr 24, 2015 · The linear thermal expansion, which measures the initial uniaxial pressure derivative of the entropy, displays a striking anisotropy. Critical and noncritical behaviors …

WebSep 1, 2024 · Download Citation Frustration can be critical An unusual flavour of critical phenomena with a stable quantum critical phase of matter is observed in a strongly correlated material and linked ... bobtail raccoonWebJul 12, 2024 · Employing the self-learning quantum Monte Carlo algorithm, we investigate the frustrated transverse-field triangle-lattice Ising model coupled to a Fermi surface. Without fermions, the spin degrees of freedom undergo a second-order quantum phase transition between paramagnetic and clock-ordered phases. This quantum critical point (QCP) … clips of spider-manWebThese results highlight the predominant role of frustration in determining the quantum critical magnetic excitations of spin chains, which may … bobtail puppy dog foodWebOct 2, 2008 · We study a model of strongly correlated electrons on the square lattice which exhibits charge frustration and quantum critical behavior. The potential is tuned to … clips of spider manWebApr 3, 2024 · Quantum critical points separating weak ferromagnetic and paramagnetic phases trigger many novel phenomena. Dynamical spin fluctuations not only suppress the long-range order, but can also lead to unusual transport and even superconductivity. Combining quantum criticality with topological electronic properties presents a rare and … bobtail ranch pentictonWebNov 22, 2024 · In both cases, frustration can either induce exotic phases accompanied by exotic quantum critical points or lead to conventional ordering with unconventional … bobtail ranchWebThe Kauzmann quantum critical point is considered to be a higher-dimensional analogue to the superfluid-to-Mott insulator quantum phase transition, in two- and one-dimensional complex ordered systems. Such quantum critical points are driven by tuning a non-thermal frustration parameter, and result due to characteristic softening of the ‘Higgs ... bobtail proportioning valve