Article
Nanoscience & Nanotechnology
Yuval Ronen, Thomas Werkmeister, Danial Haie Najafabadi, Andrew T. Pierce, Laurel E. Anderson, Young Jae Shin, Si Young Lee, Young Hee Lee, Bobae Johnson, Kenji Watanabe, Takashi Taniguchi, Amir Yacoby, Philip Kim
Summary: Interferometers probe the wave-nature and exchange statistics of indistinguishable particles, enabling the observation and control of FQHE through graphene-based interferometers. Graphite-encapsulated architectures establish vdW heterostructures as a versatile alternative to GaAs-based interferometers for experiments targeting anyonic quasi-particles.
NATURE NANOTECHNOLOGY
(2021)
Article
Chemistry, Physical
Jonathan I. Rawlinson, Csaba Fabri, Attila G. Csaszar
Summary: The Aharonov-Bohm effect has another application in chemistry, specifically in nuclear quantum dynamics and high-resolution molecular spectroscopy. The overall rotation of a symmetric-top molecule can influence internal vibrational motion dynamics similar to a solenoid carrying magnetic flux, and this effect can be used to understand the low-energy rovibrational energy-level structure of certain molecular ions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Multidisciplinary Sciences
Chris Overstreet, Peter Asenbaum, Joseph Curti, Minjeong Kim, Mark A. Kasevich
Summary: Gravity curves space and time, leading to time differences between freely falling, nonlocal trajectories. A study has found that a matter-wave interferometer is affected by gravitational phase shifts induced by a kilogram-scale source mass. The observed phase shift deviates from the predicted phase contribution and is consistent with Heisenberg's error-disturbance relation.
Article
Optics
Ismael L. Paiva, Pedro R. Dieguez, Renato M. Angelo, Eliahu Cohen
Summary: The Aharonov-Bohm effect is a fundamental topological phenomenon with various applications. In this study, the effect is analyzed using an entropic measure known as realism, which quantifies the degree of reality and is mathematically related to quantum coherence. The study finds that the realism of certain observables has a sudden change when the line connecting the wave packet crosses the solenoid, and discusses the consequences of these results.
Article
Materials Science, Multidisciplinary
Qingming Li, Jian-Jun Liu, Ying-Tao Zhang
Summary: In this study, we investigate the topological properties, energy spectrum, and persistent currents of a non-Hermitian ring with anti-Hermitian hopping terms, showing that the anti-Hermitian hopping can induce a synthetic gauge field and exhibit Aharonov-Bohm effect. The system supports imaginary persistent currents with a real energy gap in the topological phase, while supporting real persistent currents with an imaginary energy gap in the trivial phase. Additionally, the transport property of a non-Hermitian Aharonov-Bohm ring connected by two semi-infinite leads displays Aharonov-Bohm quantum oscillations in the transmission coefficient as a function of the synthetic gauge field.
Article
Optics
Xiang Li, Thors Hans Hansson, Wei Ku
Summary: The Aharonov-Bohm effect is a quantum effect that causes a measurable phase shift in the wave function of a charged particle encircling an inaccessible magnetic flux. While classically believed to be impossible, quantum mechanics reveals a local coupling between the particle's current and the electromagnetic vector potential A, extending beyond the region of finite magnetic field. This suggests the fundamental nature of A over B in quantum mechanics, despite A being unobservable.
Article
Chemistry, Multidisciplinary
Patricia Martinez-Rojas, M. Esperanza Benavides-Vergara, Francisco J. Pena, Patricio Vargas
Summary: In this work, the caloric effect for an electronic system of the antidot type is investigated. The system is modeled by combining a repulsive and attractive potential, and the energy levels are obtained analytically. It is found that controlling the caloric response of the system can be achieved by varying the AB-flux intensity. The results show that the maximization of the effect always occurs at the same AB-flux intensity in the absence of an external magnetic field, while fixing the magnetic field breaks this symmetry and changes the point of maximization.
Article
Physics, Multidisciplinary
Kolahal Bhattacharya
Summary: This paper presents a novel semi-classical theory on the electrostatic and magnetostatic fields, addressing the nonlocality problem within the Aharonov-Bohm effect. The study reveals that the quantum nature of these fields only manifests under certain conditions, where the wave amplitudes exist in regions where classical fields are absent, and operate locally on electron wave functions. This formulation also provides insights into the quantization of electric charges and magnetic flux.
Article
Materials Science, Multidisciplinary
Zuhan Geng, Zitong Zhang, Fangting Chen, Shuai Yang, Yuying Jiang, Yichun Gao, Bingbing Tong, Wenyu Song, Wentao Miao, Ruidong Li, Yuhao Wang, Qinghua Zhang, Fanqi Meng, Lin Gu, Kejing Zhu, Yunyi Zang, Lin Li, Runan Shang, Xiao Feng, Qi-Kun Xue, Ke He, Hao Zhang
Summary: We report phase coherent electron transport in PbTe nanowire networks with a loop geometry. Magnetoconductance shows Aharonov-Bohm oscillations with periods of h/e and h/2e in flux. The amplitudes of h/2e oscillations are enhanced near zero magnetic field, possibly due to interference between time-reversal paths. Temperature dependence of the AB amplitudes suggests a phase coherence length similar to 8-12 μm at 50 mK. This length scale is larger than the typical geometry of PbTe-based hybrid semiconductor-superconductor nanowire devices.
Article
History & Philosophy Of Science
John Dougherty
Summary: The paper defends the common topological interpretation of the Aharonov-Bohm effect against criticisms by Elay Shech and John Earman. It argues that their emphasis on boundary conditions and idealizations in certain cases of the effect is misplaced. The paper concludes that the topological interpretation does not presuppose unjustified idealizations and that the role of boundary conditions in the effect is exaggerated.
Article
Physics, Multidisciplinary
Ricardo Heras
Summary: This study presents a detailed analysis of the electromagnetic, topological, and quantum-mechanical aspects of the Aharonov-Bohm effect in a micro-sized toroidal magnet. By modeling the toroidal magnet as a closed flux line, the formal treatment of the effect is exact, simplified, and well-justified. The study emphasizes the topological nature of the effect and discusses local and nonlocal interpretations.
EUROPEAN PHYSICAL JOURNAL PLUS
(2022)
Article
Chemistry, Multidisciplinary
Hailong Fu, Ke Huang, Kenji Watanabe, Takashi Taniguchi, Morteza Kayyalha, Jun Zhu
Summary: In this experiment, Fabry-Perot interferometers were constructed using a split-gate design and measurements of Aharonov-Bohm oscillations were presented. The velocity of the edge state was found to be approximately 6 x 10(4) m/s at filling factor nu = 2 and decreased with increasing filling factor. The dc bias and temperature dependence of the interference suggested electron-electron interaction induced decoherence mechanisms. These results pave the way for exploring fractional and non-Abelian braiding statistics in this promising device platform.
Article
Materials Science, Multidisciplinary
Cynthia I. Osuala, Zitao Tang, Stefan Strauf, Eui-Hyeok Yang, Chunlei Qu
Summary: This study investigates the quantum transport dynamics of electrons in a multi-path Aharonov-Bohm interferometer consisting of parallel graphene nanoribbons. At low magnetic field strengths, the conductance exhibits complex oscillatory behavior due to the interference of electron wave functions from different paths, similar to the diffraction grating in optics. As the magnetic field strength increases, certain nanoribbons experience transport blockade, leading to conventional Aharonov-Bohm oscillations arising from two-path interference. The study also discusses the impact of edge effects and the influence of finite temperature.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
V Brosco, L. Pilozzi, C. Conti
Summary: This study investigates the Aharonov-Bohm caging effect in a one-dimensional lattice of theta-shaped units, where light trapping results from the destructive interference of waves propagating along three arms. The caging effect is tunable and controllable by changing the tunnel couplings J, which is reflected in the diffraction pattern and establishes a clear connection between the lattice topology and the resulting AB interference.
Article
Materials Science, Multidisciplinary
Kun Luo, Hao Geng, Li Sheng, Wei Chen, D. Y. Xing
Summary: The study demonstrates that the spatial configurations of hinge states in 3D HOTIs can be clearly revealed by using interfering loops composed of two basic magnetic fluxes. The frequency components of conductance oscillations are universally related, facilitating the exploration of the AB effect in 3D HOTIs.
Correction
Physics, Multidisciplinary
Florian Geissler, J. C. Budich, Bjoern Trauzettel
NEW JOURNAL OF PHYSICS
(2015)
Article
Materials Science, Multidisciplinary
Florian Geissler, Francois Crepin, Bjoern Trauzettel
Article
Materials Science, Multidisciplinary
Moritz Fuchs, Felix Krauss, Daniel Hetterich, Bjoern Trauzettel
Article
Materials Science, Multidisciplinary
Yuval Baum, Thore Posske, Ion Cosma Fulga, Bjoern Trauzettel, Ady Stern
Article
Physics, Multidisciplinary
N. Traverso Ziani, C. Fleckenstein, F. Crepin, B. Trauzettel
Article
Nanoscience & Nanotechnology
F. Crepin, B. Trauzettel
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2016)
Reprint
Nanoscience & Nanotechnology
F. Crepin, B. Trauzettel
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2016)
Article
Physics, Multidisciplinary
S. Gattenlohner, I. V. Gornyi, P. M. Ostrovsky, B. Trauzettel, A. D. Mirlin, M. Titov
PHYSICAL REVIEW LETTERS
(2016)
Article
Chemistry, Multidisciplinary
Lucia Vigliotti, Alessio Calzona, Niccolo Traverso Ziani, F. Sebastian Bergeret, Maura Sassetti, Bjoern Trauzettel
Summary: Josephson junctions in the presence of a magnetic field can exhibit different interference patterns based on the spatial distribution of the supercurrent. In this study, a topological Josephson junction is investigated with extended edge states. It is found that the interference pattern, driven by dominant crossed Andreev reflections and overlapped edge states, approaches a periodicity of 2 phi(0).
Article
Physics, Multidisciplinary
Aritra Lahiri, Sang -Jun Choi, Bjoern Trauzettel
Summary: Josephson tunnel junctions exhibit a supercurrent proportional to the sine of the superconducting phase difference. Voltage pulses with sharp temporal variations significantly influence the term proportional to the cosine of the phase difference. The nonequilibrium fractional Josephson effect arises from the interference of nonequilibrium virtual quasiparticle excitations, and it is independent of the ground state fermion parity in topological Josephson junctions.
PHYSICAL REVIEW LETTERS
(2023)
Article
Optics
Michael Krebsbach, Bjoern Trauzettel, Alessio Calzona
Summary: This study provides an in-depth analysis of the relevant parameters of Richardson extrapolation and proposes an optimized protocol for its implementation. It allows for precise control of statistical uncertainty and shows a significant improvement in error mitigation performance.
Article
Materials Science, Multidisciplinary
C. Fleckenstein, N. Traverso Ziani, B. Trauzettel
Article
Materials Science, Multidisciplinary
C. De Beule, N. Traverso Ziani, M. Zarenia, B. Partoens, B. Trauzettel
Article
Materials Science, Multidisciplinary
Maxim Kharitonov, Stefan Juergens, Bjoern Trauzettel
Article
Materials Science, Multidisciplinary
A. Amaricci, J. C. Budich, M. Capone, B. Trauzettel, G. Sangiovanni