Results 111 to 120 of about 100,483 (275)

Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges

Advanced Functional Materials, EarlyView.
Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley   +1 more source

Quantum magic in discrete-time quantum walk

Physical Review Research
Quantum magic, which accounts for the nonstabilizer content of a state, is essential for universal quantum computation beyond classically simulable resources. However, the way magic builds up during structured unitary dynamics remains largely open. Here,
Vikash Mittal, Yi-Ping Huang
doaj   +1 more source

Quantum Walks, Weyl equation and the Lorentz group

, 2017
Quantum cellular automata and quantum walks provide a framework for the foundations of quantum field theory, since the equations of motion of free relativistic quantum fields can be derived as the small wave-vector limit of quantum automata and walks ...
Bisio, Alessandro, D'Ariano, Giacomo Mauro, Perinotti, Paolo   +2 more
core   +1 more source

Strain‐Programmable Luminescent Adhesive Patch With Tartrazine‐Mediated Optical Skin Clearing for Photochemical Tissue Bonding

Advanced Functional Materials, EarlyView.
We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim, Kyungjoo Jo, Kwanghyeon Park, Jun Hee Kim, Jong Hyeong Cho, Inhoo Choi, Sei Kwang Hahn   +6 more
wiley   +1 more source

Quantum sensing of noises in one and two dimensional quantum walks

Scientific Reports, 2017
Quantum walk (QW) provides a versatile platform for the realization of quantum algorithms. Due to the existence of the inevitable noises in the walk, the different quantum algorithms accommodating to different noises are demanded.
Tian Chen, Xiong Zhang, Xiangdong Zhang
doaj   +1 more source

Experimental Implementation of the Quantum Random-Walk Algorithm

, 2003
The quantum random walk is a possible approach to construct new quantum algorithms. Several groups have investigated the quantum random walk and experimental schemes were proposed.
B.C. Travaglione, C. Monroe, D. Collins, D. Leung, D.G. Cory, D.G. Cory, E. Farhi, E. Knill, Hui Li, I.L. Chuang, J. Du, J. Du, J. Du, J. Zhang, J.A. Jones, J.I. Cirac, Jiangfeng Du, Jihui Wu, L. Xiao, L.K. Grover, L.M.K. Vandersypen, M.A. Nielsen, Mingjun Shi, N. Gershenfeld, R. Marx, R.P. Feynman, Rongdian Han, S. Somaroo, W. Dür, X. Fang, X. Peng, Xianyi Zhou, Xiaodong Xu, Y. Aharonov   +33 more
core   +1 more source

Color Routing and Beam Steering of Single‐Molecule Emission with a Spherical Silicon Nanoantenna

Advanced Functional Materials, EarlyView.
We experimentally demonstrate broadband directional emission from single molecules using a single spherical silicon nanoparticle assembled via DNA origami. By varying nanoparticle (NP) size and emitter position, we achieve unidirectional emission, beam steering, and color routing at the nanoscale, revealing modal interference as the underlying ...
María Sanz‐Paz, Nicole Siegel, Guillermo Serrera, Javier González‐Colsa, Fangjia Zhu, Karol Kołątaj, Minoru Fujii, Hiroshi Sugimoto, Pablo Albella, Guillermo P. Acuna   +9 more
wiley   +1 more source

Uncovering the Origin of Efficiency Roll‐Off in TADF OLEDs

Advanced Functional Materials, EarlyView.
OLEDs based on thermally activated delayed fluorescent (TADF) materials often suffer from a severe drop in efficiency at high brightness levels. This work presents a technique to uncover the source of this efficiency drop, and quantifies the exciton‐exciton and exciton‐polaron annihilation processes responsible for efficiency losses in our TADF OLEDs ...
Liam G. King, Kou Yoshida, Arvydas Ruseckas, Ifor D. W. Samuel   +3 more
wiley   +1 more source

The role of coherence on two-particle quantum walks

Open Physics, 2015
We investigate the dynamical properties of the two-boson quantum walk in systems with different degrees of coherence, and where the effect of the coherence on the two-boson quantum walk can be naturally introduced. A general analytical expression for the
Lu Li-Hua, Zhu Shan, Li You-Quan
doaj   +1 more source

Quantum walks in higher dimensions

, 2002
We analyze the quantum walk in higher spatial dimensions and compare classical and quantum spreading as a function of time. Tensor products of Hadamard transformations and the discrete Fourier transform arise as natural extensions of the quantum coin ...
Aharonov D, Aharonov Y, Ambainis A, B C Sanders, Gardiner C W, L T Stephenson, Moore C, Nielsen M A, S D Bartlett, T D Mackay   +9 more
core   +1 more source