scholarly journals Multi-Particle Interference in an Electronic Mach–Zehnder Interferometer

Entropy ◽  
2021 ◽  
Vol 23 (6) ◽  
pp. 736
Author(s):  
Janne Kotilahti ◽  
Pablo Burset ◽  
Michael Moskalets ◽  
Christian Flindt
Keyword(s):  
Correlation Function ◽  
Diffraction Pattern ◽  
Charge Carriers ◽  
Zehnder Interferometer ◽  
Particle State ◽  
Electron Sources ◽  
First Order ◽  
Quantum Properties ◽  
Mach Zehnder Interferometer

The development of dynamic single-electron sources has made it possible to observe and manipulate the quantum properties of individual charge carriers in mesoscopic circuits. Here, we investigate multi-particle effects in an electronic Mach–Zehnder interferometer driven by a series of voltage pulses. To this end, we employ a Floquet scattering formalism to evaluate the interference current and the visibility in the outputs of the interferometer. An injected multi-particle state can be described by its first-order correlation function, which we decompose into a sum of elementary correlation functions that each represent a single particle. Each particle in the pulse contributes independently to the interference current, while the visibility (given by the maximal interference current) exhibits a Fraunhofer-like diffraction pattern caused by the multi-particle interference between different particles in the pulse. For a sequence of multi-particle pulses, the visibility resembles the diffraction pattern from a grid, with the role of the grid and the spacing between the slits being played by the pulses and the time delay between them. Our findings may be observed in future experiments by injecting multi-particle pulses into a Mach–Zehnder interferometer.

scholarly journals Parameter Estimation of Wormholes beyond the Heisenberg Limit

Universe ◽  
2018 ◽  
Vol 4 (11) ◽  
pp. 115 ◽  
Author(s):  
Carlos Sanchidrián-Vaca ◽  
Carlos Sabín
Keyword(s):  
Parameter Estimation ◽  
Minkowski Spacetime ◽  
Zehnder Interferometer ◽  
Quantum Metrology ◽  
Nonlinear Media ◽  
Heisenberg Limit ◽  
Quantum Properties ◽  
Spacetime Curvature ◽  
Mach Zehnder Interferometer

We propose to exploit the quantum properties of nonlinear media to estimate the parameters of massless wormholes. The spacetime curvature produces a change in length with respect to Minkowski spacetime that can be estimated in principle with an interferometer. We use quantum metrology techniques to show that the sensitivity is improved with nonlinear media and propose a nonlinear Mach–Zehnder interferometer to estimate the parameters of massless wormholes that scales beyond the Heisenberg limit.

Exploring Baryon Rich Matter with Heavy-Ion Collisions

2019 ◽  
Vol 64 (7) ◽  
pp. 583 ◽  
Author(s):  
S. Harabasz
Keyword(s):  
Center Of Mass ◽  
Heavy Ion ◽  
State Density ◽  
Heavy Nuclei ◽  
First Order ◽  
Center Of Mass Energy ◽  
Ion Collisions ◽  
Deconfinement Phase Transition ◽  
Ground State Density

Collisions of heavy nuclei at (ultra-)relativistic energies provide a fascinating opportunity to re-create various forms of matter in the laboratory. For a short extent of time (10-22 s), matter under extreme conditions of temperature and density can exist. In dedicated experiments, one explores the microscopic structure of strongly interacting matter and its phase diagram. In heavy-ion reactions at SIS18 collision energies, matter is substantially compressed (2–3 times ground-state density), while moderate temperatures are reached (T < 70 MeV). The conditions closely resemble those that prevail, e.g., in neutron star mergers. Matter under such conditions is currently being studied at the High Acceptance DiElecton Spectrometer (HADES). Important topics of the research program are the mechanisms of strangeness production, the emissivity of matter, and the role of baryonic resonances herein. In this contribution, we will focus on the important experimental results obtained by HADES in Au+Au collisions at 2.4 GeV center-of-mass energy. We will also present perspectives for future experiments with HADES and CBM at SIS100, where higher beam energies and intensities will allow for the studies of the first-order deconfinement phase transition and its critical endpoint.

Role of the Structure and Electronic Properties of Fe2O3-MoO3 Catalyst on the Dehydration of Isopropyl Alcohol

1993 ◽  
Vol 58 (7) ◽  
pp. 1591-1599 ◽  
Author(s):  
Abd El-Aziz A. Said
Keyword(s):  
Active Sites ◽  
Isopropyl Alcohol ◽  
Oxide Catalyst ◽  
Flow System ◽  
Charge Carriers ◽  
X Ray Diffraction ◽  
X Ray ◽  
Catalyst Composition ◽  
Surface Active

Molybdenum oxide catalyst doped or mixed with (1 - 50) mole % Fe3+ ions were prepared. The structure of the original samples and the samples calcined at 400 °C were characterized using DTA, X-ray diffraction and IR spectra. Measurements of the electrical conductivity of calcined samples with and without isopropyl alcohol revealed that the conductance increases on increasing the content of Fe3+ ions up to 50 mole %. The activation energies of charge carriers were determined in presence and absence of the alcohol. The catalytic dehydration of isopropyl alcohol was carried out at 250 °C using a flow system. The results obtained showed that the doped or mixed catalysts are active and selective towards propene formation. However, the catalyst containing 40 mole % Fe3+ ions exhibited the highest activity and selectivity. Correlations were attempted to the catalyst composition with their electronic and catalytic properties. Probable mechanism for the dehydration process is proposed in terms of surface active sites.

Optical-TDMA LAN incorporating packaged integrated Mach-Zehnder interferometer channel selector

1997 ◽  
Vol 33 (16) ◽  
pp. 1404 ◽  
Author(s):  
P. Gunning ◽  
J.K. Lucek ◽  
D. Nesset ◽  
J.V. Collins ◽  
C.W. Ford ◽  
...  
Keyword(s):  
Zehnder Interferometer ◽  
Mach Zehnder Interferometer

Arbitrary phase-locking in Mach–Zehnder interferometer

2019 ◽  
Vol 442 ◽  
pp. 148-151
Author(s):  
Shuhe Wu ◽  
Wenfeng Huang ◽  
Peiyu Yang ◽  
Shuqi Liu ◽  
Liqing Chen
Keyword(s):  
Phase Locking ◽  
Zehnder Interferometer ◽  
Arbitrary Phase ◽  
Mach Zehnder Interferometer
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