Highlights
Jun 30, 2014
Princeton Center for Complex Materials (2014)
Observation of a Dissipation-Induced Classical to Quantum Transition
J. Raftery, D. Sadri, S. Schmidt, H. E. Tureci, A. A. Houck
In this work, we study a novel dynamical phase
transition of light, where photon-photon interactions and dissipation into the
environment are key aspects of the physics. Together they give rise to a
transition from a region of classical behavior into a regime where quantum
effects dominate. The transition was observed in a Jaynes-Cummings dimer built
from two coupled microwave cavities (shown in the upper picture. In this
system, photons repel each other due to the presence of nearby superconducting
Jun 30, 2014
Princeton Center for Complex Materials (2014)
Landau Quantization and Quasiparticle Interference in the 3D Dirac Semimetal Cd3As2
Robert J. Cava and Ali Yazdani
Condensed matter systems provide a rich setting to realize Dirac and Majorana
fermionic
excitations and the possibility to manipulate them in materials for potential applications.
Recently, it has been proposed that Weyl
fermions, which are chiral, massless particles, can emerge in certain bulk
materials or in topological insulator multilayers and can produce unusual
transport properties, such as charge pumping driven by a chiral anomaly. A pair
of Weyl
fermions protected by crystalline symmetry, effectively forming a massless
Jun 19, 2014
Penn State Center for Nanoscale Science (2020)
Enzyme Molecules as Nanomotors
Samudra Sengupta, Krishna K. Dey, H. S. Muddana, Tristan Tabouillot, Michael E. Ibele, Peter J. Butler, and Ayusman Sen (Penn State)
MRSEC researchers have recently discovered that enzymes - molecules that catalyze chemical reactions in cells - move during the reaction. Although this property is well known for motor proteins, it has not been previously known that movement is a general consequence of enzymatic reactions. This movement depends on the concentration of the enzyme's substrate (the fuel for its reaction) and causes individual enzyme molecules t
Jun 17, 2014
CU Boulder Soft Materials Research Center (2014)
The Heliconical Nematic phase
LCMRC researchers have
found an extraordinary nematic liquid crystal
phase, a new entry in the most widely studied and widely applied class of
liquid crystals. In the whole history of
Jun 17, 2014
CU Boulder Soft Materials Research Center (2014)
Family Science Evenings
These
evenings offer an opportunity for K-12 students and their parents to enter the
realm of science and engineering together, such as the father and son seen here
using the Center’s Exploring
Jun 17, 2014
CU Boulder Soft Materials Research Center (2014)
Ferronematic Fredericksz Transition
LCMRC researchers are
exploring the recently discovered ferronematic liquid crystal phase, revealing a dramatic polar
magneto-optical response to externally applied magnetic field in
May 28, 2014
CRISP: Center for Research on Interface Structures and Phenomena (2011)
Engineering Cellular Response Using Nanopatterned Bulk Metallic Glass (BMG)
J. Padmanabhan, E. Kinser, M. Stalter, C. Duncan-Lewis, J. Balestrini, A. Sawyer, J. Schroers, T. Kyriakides, Engineering Cellular Response Using Nanopatterned Bulk Metallic Glass. ACS Nano 2014.
Biomaterials implanted in the body evoke a “Foreign body response” which results in encapsulation of the material in a collagen-rich protein capsule. Fibroblast cells, which produce collagen, mediate this process that leads to biomaterial rejection / device failure in vivo. Surface nanotopography of BMGs can be used to engineer fibroblast-material interactions.
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