Concept

Zero-point energy

Related publications (268)

Hydraulics, Air Entrainment, and Energy Dissipation on a Gabion Stepped Weir

In the last decades the design of stepped spillways regained some interest because of their suitability with new construction methods including gabions. The hydraulic performances of gabion stepped weirs were investigated experimentally in terms of the flo ...

American Society of Civil Engineers2014

Fabrication and local laser heating of freestanding Ni80Fe20 bridges with Pt contacts displaying anisotropic magnetoresistance and anomalous Nernst effect

Dirk Grundler

In spin caloritronics, ferromagnetic samples subject to relatively large in-plane temperature gradients T have turned out to be extremely interesting. We report on a preparation technique that allows us to create freely suspended permalloy/Pt hybrid struct ...

2014

Global dynamics of the nonradial energy-critical wave equation above the ground state energy

Joachim Krieger

In this paper we establish the existence of certain classes of solutions to the energy critical nonlinear wave equation in dimensions 3 and 5 assuming that the energy exceeds the ground state energy only by a small amount. No radial assumption is made. We ...

Amer Inst Mathematical Sciences2013

Frequency anomaly in the Rashba-effect induced magnetization oscillations of a high-mobility two-dimensional electron system

Dirk Grundler

With the direct measurement of the quantum oscillatory magnetization M of a two-dimensional electron system (2DES) in an InGaAs/InP asymmetric quantum well we discover a frequency anomaly of the de Haas–van Alphen effect which is not consistent with existi ...

2013

Nonlinear Quantum Optomechanics via Individual Intrinsic Two-Level Defects

Tobias Kippenberg, Vivishek Sudhir

We propose to use the intrinsic two-level system (TLS) defect states found naturally in integrated optomechanical devices for exploring cavity QED-like phenomena with localized phonons. The Jaynes-Cummings-type interaction between TLS and mechanics can rea ...

American Physical Society2013

Ultra low power NEMFET based logic

Mihai Adrian Ionescu, Antonios Bazigos, Surya Shankar Dan

In this paper, we introduce a Nano-Electro-Mechanical Field Effect Transistor (NEMFET) based logic family tailored to the implementation of low speed and ultra low energy functional units and processors. Basic Boolean gates implemented with NEMFETs only ar ...

IEEE2013

Global dynamics away from the ground state for the energy-critical nonlinear wave equation

Joachim Krieger

We study global behavior of radial solutions for the nonlinear wave equation with the focusing energy critical nonlinearity in three and five space dimensions. Assuming that the solution has energy at most slightly more than the ground states and gets away ...

2013

Quantum stabilization of classically unstable plateau structures

Frédéric Mila, Tommaso Coletta

Motivated by an intriguing report, in some frustrated quantum antiferromagnets, of magnetization plateaus whose simple collinear structure is not stabilized by an external magnetic field in the classical limit, we develop a semiclassical method to estimate ...

2013

Assessing the performance of computational methods for the prediction of the ground state structure of a cyclic decapeptide

Ursula Röthlisberger, Thomas Rizzo, Ivano Tavernelli, Natalia Nagornova, Matteo Guglielmi

We benchmark the performance of various computational approaches, ranging from the classical nonpolarizable force fields AMBER FF96 and FF99SB, the polarizable force fields AMBER FF02polEP and AMOEBAbio09 to the semiempirical DFT method SCC-DFTB. The test ...

Wiley-Blackwell2013

Low-energy spin dynamics of the s=1/2 kagome system herbertsmithite

Henrik Moodysson Rønnow, Goran Nilsen

The low-energy (epsilon = (h) over bar < 1 meV), low-temperature (T = 0.05 K) spin dynamics of the s = 1/2 kagome candidate herbertsmithite are probed in the presence of magnetic fields up to 2.5 T. The zero-field spectra reveal a very weak continuum of sc ...

Institute of Physics2013

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