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Showing 1 to 12 of 179 entries
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Quantum oscillations from surface Fermi arcs in Weyl and Dirac semimetals.

Nature communications

Potter AC, Kimchi I, Vishwanath A.
PMID: 25327353
Nat Commun. 2014 Oct 20;5:5161. doi: 10.1038/ncomms6161.

In a magnetic field, electrons in metals repeatedly traverse closed magnetic orbits around the Fermi surface. The resulting oscillations in the density of states enable powerful experimental techniques for measuring a metal's Fermi surface structure. On the other hand,...

Structural studies of 1,1-dimethyl-2-oxy-1-silacyclohexane by means of matrix isolation infrared absorption spectroscopy.

The journal of physical chemistry. A

Ceponkus J, Jonusas M, Cotter CP, Pucetaite M, Aleksa V, Guirgis GA, Sablinskas V.
PMID: 25513738
J Phys Chem A. 2015 Mar 19;119(11):2721-6. doi: 10.1021/jp5099014. Epub 2014 Dec 30.

Infrared spectra of gaseous, liquid, and matrix-isolated samples of newly synthesized 1,1-dimethyl-2-oxy-1-silacyclohexane were recorded. Raman spectra of 1,1-dimethyl-2-oxy-1-silacyclohexane in liquid and solid states were obtained in the temperature range from 170 to 340 K. Ab initio HF and DFT...

Absolute absorption cross sections from photon recoil in a matter-wave interferometer.

Physical review letters

Eibenberger S, Cheng X, Cotter JP, Arndt M.
PMID: 25014795
Phys Rev Lett. 2014 Jun 27;112(25):250402. doi: 10.1103/PhysRevLett.112.250402. Epub 2014 Jun 25.

We measure the absolute absorption cross section of molecules using a matter-wave interferometer. A nanostructured density distribution is imprinted onto a dilute molecular beam through quantum interference. As the beam crosses the light field of a probe laser some...

Magnetic torque anomaly in the quantum limit of Weyl semimetals.

Nature communications

Moll PJ, Potter AC, Nair NL, Ramshaw BJ, Modic KA, Riggs S, Zeng B, Ghimire NJ, Bauer ED, Kealhofer R, Ronning F, Analytis JG.
PMID: 27545105
Nat Commun. 2016 Aug 22;7:12492. doi: 10.1038/ncomms12492.

Electrons in materials with linear dispersion behave as massless Weyl- or Dirac-quasiparticles, and continue to intrigue due to their close resemblance to elusive ultra-relativistic particles as well as their potential for future electronics. Yet the experimental signatures of Weyl-fermions...

Observation of a discrete time crystal.

Nature

Zhang J, Hess PW, Kyprianidis A, Becker P, Lee A, Smith J, Pagano G, Potirniche ID, Potter AC, Vishwanath A, Yao NY, Monroe C.
PMID: 28277505
Nature. 2017 Mar 08;543(7644):217-220. doi: 10.1038/nature21413.

Spontaneous symmetry breaking is a fundamental concept in many areas of physics, including cosmology, particle physics and condensed matter. An example is the breaking of spatial translational symmetry, which underlies the formation of crystals and the phase transition from...

Patient and provider concordance on symptoms during the oncology outpatient clinic visit.

The Journal of community and supportive oncology

Chidambaram S, DeShields T, Potter P, Olsen S, Chen L.
PMID: 25853259
J Community Support Oncol. 2014 Oct;12(10):370-7. doi: 10.12788/jcso.0080.

BACKGROUND: Cancer patients experience multiple symptoms, with specific symptoms varying by cancer type. Problems in communication between patients and health care providers (HCPs) can interfere with effective symptom assessment and management.OBJECTIVE: To address gaps in previous research by prospectively...

Transport evidence for Fermi-arc-mediated chirality transfer in the Dirac semimetal Cd3As2.

Nature

Moll PJ, Nair NL, Helm T, Potter AC, Kimchi I, Vishwanath A, Analytis JG.
PMID: 27376477
Nature. 2016 Jul 14;535(7611):266-70. doi: 10.1038/nature18276. Epub 2016 Jul 04.

The dispersion of charge carriers in a metal is distinctly different from that of free electrons owing to their interactions with the crystal lattice. These interactions may lead to quasiparticles mimicking the massless relativistic dynamics of high-energy particle physics,...

Coherence in the presence of absorption and heating in a molecule interferometer.

Nature communications

Cotter JP, Eibenberger S, Mairhofer L, Cheng X, Asenbaum P, Arndt M, Walter K, Nimmrichter S, Hornberger K.
PMID: 26066053
Nat Commun. 2015 Jun 11;6:7336. doi: 10.1038/ncomms8336.

Matter-wave interferometry can be used to probe the foundations of physics and to enable precise measurements of particle properties and fundamental constants. It relies on beam splitters that coherently divide the wave function. In atom interferometers, such elements are...

Quantum spin liquids and the metal-insulator transition in doped semiconductors.

Physical review letters

Potter AC, Barkeshli M, McGreevy J, Senthil T.
PMID: 23006401
Phys Rev Lett. 2012 Aug 17;109(7):077205. doi: 10.1103/PhysRevLett.109.077205. Epub 2012 Aug 16.

We describe a new possible route to the metal-insulator transition in doped semiconductors such as Si:P or Si:B. We explore the possibility that the loss of metallic transport occurs through Mott localization of electrons into a quantum spin liquid...

Home treatment of tuberculosis.

The Journal of the Medical Society of New Jersey

POTTER BP.
PMID: 13346307
J Med Soc N J. 1956 Jul;53(7):363-8.

No abstract available.

Two-photon dissociation of the NO dimer in the region 7.1-8.2 eV: excited states and photodissociation pathways.

The Journal of chemical physics

Dribinski V, Potter AB, Fedorov I, Reisler H.
PMID: 15606254
J Chem Phys. 2004 Dec 22;121(24):12353-60. doi: 10.1063/1.1825381.

A study of excited states of the NO dimer is carried out at 7.1-8.2 eV excitation energies. Photoexcitation is achieved by two-photon absorption at 300-345 nm followed by (NO)(2) dissociation and detection of electronically excited products, mostly in n=3...

Evidence for magnetospheric effects on the sodium atmosphere of mercury.

Science (New York, N.Y.)

Potter AE, Morgan TH.
PMID: 17811832
Science. 1990 May 18;248(4957):835-8. doi: 10.1126/science.248.4957.835.

Monochromatic images of Mercury at the sodium D(2) emission line showed excess sodium emission in localized regions at high northern and southern latitudes and day-to-day global variations in the distribution of sodium emission. These phenomena support the suggestion that...

Showing 1 to 12 of 179 entries