Results 31 to 40 of about 3,698,626 (376)
A brief review is given of why twistor geometry has taken a central place in the theory of scattering amplitudes for fundamental particles. The emphasis is on the twistor diagram formalism as originally proposed by Penrose, the development of which has now led to the definition by Arkani-Hamedet al.of the ‘amplituhedron’.
openaire +3 more sources
Structural calculation scheme of the hydropulse device for vibration cutting with built-in ring with pressure pulse generator (PPG) is considered. On the basis of the structural scheme and cyclogram of the working cycle of the device, its dynamic and ...
Roman Obertyukh +5 more
doaj +1 more source
The sub-Doppler resonances linewidths and amplitudes depend on the laser beam intensity. The effect of laser beam intensity on the resonance linewidths and amplitudes obtained from different energy transitions of atoms varies from resonance to resonance.
Ersoy Şahin
doaj +1 more source
Scattering amplitude annihilators
Several second order differential operators are shown to annihilate the YM and GR tree scattering amplitudes. In particular we prove a conjecture of Loebbert, Mojaza and Plefka from their investigation of a hidden conformal symmetry in GR.Comment: 31 ...
Nützi, Andrea, Reiterer, Michael
core +1 more source
Electrically Tunable Metasurface with Independent Frequency and Amplitude Modulations
Metasurfaces with actively tunable features are highly demanded for advanced applications in electronic and electromagnetic systems. However, realizing independent dual-tunability remains challenging and requires more efforts.
Jin Zhang +4 more
semanticscholar +1 more source
In this work, we argue that the α′→0 limit of closed string theory scattering amplitudes is a tropical limit. The motivation is to develop a technology to systematize the extraction of Feynman graphs from string theory amplitudes at higher genus.
openaire +2 more sources
Vascular response to the microcirculation in the fingertip by local vibration with varied amplitude
Objectives: We investigated the effect of local vibration intensity on the vascular response to the microcirculation of the finger.Materials and methods: We performed hand-transmitted vibration experiments combined with laser Doppler flowmetry (LDF) to ...
Lizhong Mu +10 more
doaj +1 more source
Complete amplitude and phase control of light using broadband holographic metasurfaces. [PDF]
Reconstruction of light profiles with amplitude and phase information, called holography, is an attractive optical technology with various significant applications such as three-dimensional imaging and optical data storage.
Gun-Yeal Lee +8 more
semanticscholar +1 more source
Small amplitude quasi-breathers and oscillons [PDF]
Quasi-breathers (QB) are time-periodic solutions with weak spatial localization introduced in G. Fodor et al. in Phys. Rev. D. 74, 124003 (2006).
A. E. Kudryavtsev +9 more
core +2 more sources
Purpose: to determine effectiveness of problem-oriented program of women’s physical rehabilitation with post mastectomy syndrome in improvement of upper limb’s functional state.
Y.A. Briskin, T.Y. Odinets
doaj +1 more source

