Publications related to Zero-point energy

Signatures of quantum criticality in the thermopower of Ba(Fe1-xCox)(2)As-2

László Forró, Richard Gaal, Stevan Arsenijevic

We demonstrate that the thermopower (S) can be used to probe the spin fluctuations (SFs) in proximity to the quantum critical point (QCP) in Fe-based superconductors. The sensitivity of S to the entropy of charge carriers allows us to observe an increase o ...

Amer Physical Soc2013

Critical Resistance at the Superconductor-Insulator Transition in Hole-Doped Cuprates

Davor Pavuna, Guy Joseph Günter Dubuis, Ivan Bozovic

Here, we show that in several p-type cuprates, the superconductor-to-insulator transition (SIT) occurs at the critical sheet resistance approximately equal to the quantum resistance of pairs, RQ=h/4

e^{2}

=6.5 kΩ. In a relatively broad range of temperature ...

Springer Verlag2013

Sedimentation of macroscopic rigid knots and its relation to gel electrophoretic mobility of DNA knots

Giovanni Dietler, Cédric Weber, Andrzej Stasiak, Mathias Carlen

We address the general question of the extent to which the hydrodynamic behaviour of microscopic freely fluctuating objects can be reproduced by macrosopic rigid objects. In particular, we compare the sedimentation speeds of knotted DNA molecules undergoin ...

Nature Publishing Group2013

X-Ray Diffraction Observations of a Charge-Density-Wave Order in Superconducting Ortho-II YBa_{2}Cu_{3}O_{6.54} Single Crystals in Zero Magnetic Field

Johan Juul Chang

X-ray diffraction measurements show that the high-temperature superconductor YBa2Cu3O6.54, with ortho-II oxygen order, has charge-density-wave order in the absence of an applied magnetic field. The dominant wave vector of the charge density wave is q(CDW) ...

Amer Physical Soc2013

Transition from slow Abrikosov to fast moving Josephson vortices in iron pnictide superconductors

Philip Johannes Walter Moll

Iron pnictides are layered high Tc superconductors with moderate material anisotropy and thus Abrikosov vortices are expected in the mixed state. Yet, we have discovered a distinct change in the nature of the vortices from Abrikosov-like to Josephson-like ...

2013

Evidence for Columnar Order in the Fully Frustrated Transverse Field Ising Model on the Square Lattice

Frédéric Mila, Tommaso Coletta, Sandro Wenzel

Using extensive classical and quantum Monte Carlo simulations, we investigate the ground-state phase diagram of the fully frustrated transverse field Ising model on the square lattice. We show that pure columnar order develops in the low-field phase above ...

2012

Experimental investigation on the aerodynamic loads and wake flow features of a low aspect-ratio circular cylinder

Giacomo Valerio Iungo

An experimental investigation on the flow features of the wake generated from a circular cylinder with finite height and placed vertically on a plane is presented. Through force measurements the mean drag coefficient is found to be roughly invariant by var ...

Elsevier2012

Semiclassical approach to ground-state properties of hard-core bosons in two dimensions

Frédéric Mila, Tommaso Coletta, Nicolas Laflorencie

Motivated by some inconsistencies in the way quantum fluctuations are included beyond the classical treatment of hard-core bosons on a lattice in the recent literature, we revisit the large-S semiclassical approach to hard-core bosons on the square lattice ...

2012

Dissociation dynamics of singly charged vortices into half-quantum vortex pairs

Benoît Marie Joseph Deveaud, Vincenzo Savona, Timothy Chi Hin Liew, Konstantinos Lagoudakis, Francesco Manni

The quest for identification and understanding of fractional vorticity is a major subject of research in the quantum fluids domain, ranging from superconductors, superfluid Helium-3 to cold atoms. In a two-dimensional Bose degenerate gas with a spin degree ...

Nature Publishing Group2012

Global dynamics above the ground state energy for the one-dimensional NLKG equation

Joachim Krieger

In this paperwe obtain a global characterization of the dynamics of even solutions to the one-dimensional nonlinear Klein–Gordon (NLKG) equation on the line with focusing nonlinearity |u|p−1u, p > 5, provided their energy exceeds that of the ground state o ...

Springer Verlag2012

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Signatures of quantum criticality in the thermopower of Ba(Fe1-xCox)(2)As-2

Critical Resistance at the Superconductor-Insulator Transition in Hole-Doped Cuprates

Sedimentation of macroscopic rigid knots and its relation to gel electrophoretic mobility of DNA knots

X-Ray Diffraction Observations of a Charge-Density-Wave Order in Superconducting Ortho-II YBa_{2}Cu_{3}O_{6.54} Single Crystals in Zero Magnetic Field

Transition from slow Abrikosov to fast moving Josephson vortices in iron pnictide superconductors

Evidence for Columnar Order in the Fully Frustrated Transverse Field Ising Model on the Square Lattice

Experimental investigation on the aerodynamic loads and wake flow features of a low aspect-ratio circular cylinder

Semiclassical approach to ground-state properties of hard-core bosons in two dimensions

Dissociation dynamics of singly charged vortices into half-quantum vortex pairs

Global dynamics above the ground state energy for the one-dimensional NLKG equation

Sedimentation of macroscopic rigid knots and its relation to gel electrophoretic mobility of DNA knots

Evidence for Columnar Order in the Fully Frustrated Transverse Field Ising Model on the Square Lattice

Experimental investigation on the aerodynamic loads and wake flow features of a low aspect-ratio circular cylinder

Signatures of quantum criticality in the thermopower of Ba(Fe1-xCox)(2)As-2

Critical Resistance at the Superconductor-Insulator Transition in Hole-Doped Cuprates

Semiclassical approach to ground-state properties of hard-core bosons in two dimensions

X-Ray Diffraction Observations of a Charge-Density-Wave Order in Superconducting Ortho-II YBa_{2}Cu_{3}O_{6.54} Single Crystals in Zero Magnetic Field

Dissociation dynamics of singly charged vortices into half-quantum vortex pairs

Transition from slow Abrikosov to fast moving Josephson vortices in iron pnictide superconductors

Global dynamics above the ground state energy for the one-dimensional NLKG equation