Showing papers by "Jens H. Gundlach published in 2009"
TL;DR: In this paper, the authors review recent mechanical experiments that test some of the most basic principles of physics including the weak and strong forms of the Equivalence Principle, the gravitational inverse-square law, and Lorentz invariance.
492 citations
Patent•
22 Sep 2009TL;DR: In this article, the Mycobacterium smegmatis porin nanopores, systems that comprise them, and methods of using and making these nanopores are presented. But they do not specify any specific types of nanopores.
Abstract: Provided herein are Mycobacterium smegmatis porin nanopores, systems that comprise these nanopores, and methods of using and making these nanopores. Such nanopores may be wild-type MspA porins, mutant MspA porins, wild-type MspA paralog porins, wild-type MspA homolog porins, mutant MspA paralog porins, mutant MspA homolog porins, or single-chain Msp porins. Also provided are bacterial strains capable of inducible Msp porin expression.
59 citations
Posted Content•
TL;DR: The recent discovery of "dark energy" has challenged Einstein's general theory of relativity as a complete model for our macroscopic universe as discussed by the authors, and from a theoretical view, the challenge is even stronger: general relativity clearly does not extend to the very small, where quantum mechanics holds sway.
Abstract: The recent discovery of "dark energy" has challenged Einstein's general theory of relativity as a complete model for our macroscopic universe. From a theoretical view, the challenge is even stronger: general relativity clearly does not extend to the very small, where quantum mechanics holds sway. Fundamental physics models thus require some major revisions. We must explore deeper to both constrain and inspire this needed new physics. In the realm of the solar-system, we can effectively probe for small deviations from the predictions of general relativity: Technology now offers a wide range of opportunities to pursue experiments with accuracies orders of magnitude better than yet achieved. We describe both the relevant theoretical backgrounds and the opportunities for far more accurate solar system experiments.
10 citations
TL;DR: In this paper, a torsion balance placed on a continuously rotating turntable was used to test the equivalence principle with unprecedented precision and generality using a Torsion Balance.
Abstract: Equivalence principle tests are probes for new fundamental physics. We have conducted several laboratory experiments to test the equivalence principle with unprecedented precision and generality using a torsion balance placed on a continuously rotating turntable. We present preliminary results comparing the differential accelerations of Ti, Be, and Al towards local masses, the earth and the center of our galaxy.
10 citations
TL;DR: MspA is introduced as a promising and engineerable framework for nanopore sequencing technology and can resolve small chains of the nucleotides A, C, and T when a duplex region of hairpin DNA arrests translocation.
1 citations
01 Jan 2009
1 citations
DOI•
01 Jan 2009
TL;DR: In this article, the EötWash torsion pendulum experiments are used for precise tests of the strong and weak equivalence principle, the gravitational inverse square law and Lorentz symmetry.
Abstract: Torsion pendulum experiments are used for precise tests of the strong and weak equivalence principle, the gravitational inverse square law and Lorentz symmetry. In addition, dedicated experiments can be constructed that are sensitive to axion-like particles. The fantastic sensitivity of these devices has many implications for gravity scale particle physics. Here we briefly summarize a few of the particle physics implications of four of the EötWash torsion pendulum experiments inspired by string theory and other extensions to the standard model.
1 citations
Patent•
22 Sep 2009
TL;DR: The authors concerne des nanopores de porine Mycobacterium Smegatis, des systemes qui comprennent lesdits nanopores and des procedes utilisant and produisant ces nanopores.
Abstract: L’invention concerne des nanopores de porine Mycobacterium Smegatis, des systemes qui comprennent lesdits nanopores et des procedes utilisant et produisant ces nanopores Lesdits nanopores peuvent etre des porines MspA de type sauvage, des porines MspA mutantes, des porines paralogues MspA de type sauvage, des porines homologues MspA de type sauvage, des porines paralogues MspA mutantes, des porines homologues MspA mutantes ou des porines Msp a chaine unique L’invention concerne egalement des souches bacteriennes capables d’induire l’expression des porines Msp