Coherence and Indistinguishability of Single Electrons Emitted by Independent Sources
- E. Bocquillon, V. Freulon, G. Fève
- PhysicsScience
- 29 January 2013
The demonstration of two-Electron interference provides the possibility of manipulating coherent and indistinguishable single-electron wave packets in quantum conductors.
Current correlations of an on-demand single-electron emitter
- A. Mahé, F. Parmentier, Y. Jin
- Physics
- 12 November 2010
In analogy with quantum optics, short-time correlations of the current fluctuations are measured and used to assess the quality of the single-particle emission of a recently introduced on-demand…
4π-periodic Josephson supercurrent in HgTe-based topological Josephson junctions
- J. Wiedenmann, E. Bocquillon, L. Molenkamp
- PhysicsNature Communications
- 18 March 2015
The observation of an anomalous response to rf irradiation in a Josephson junction made of a HgTe weak link is reported, understood as due to a 4π-periodic contribution to the supercurrent, and its amplitude is compatible with the expected contribution of a gapless Andreev doublet.
Fractional statistics in anyon collisions
- H. Bartolomei, M. Kumar, G. Fève
- PhysicsScience
- 10 April 2020
Abelian fractional statistics at filling factor ν = ⅓ is experimentally demonstrated by measuring the current correlations resulting from the collision between anyons at a beamsplitter, and extracting ϕ = π/3, in agreement with predictions.
Gapless Andreev bound states in the quantum spin Hall insulator HgTe.
- E. Bocquillon, R. Deacon, L. Molenkamp
- PhysicsNature Nanotechnology
- 29 January 2016
Experimental evidence for topological superconductivity induced in a HgTe quantum well, a 2D topological insulator that exhibits the quantum spin Hall (QSH) effect is reported.
Electron quantum optics in ballistic chiral conductors
- E. Bocquillon, V. Freulon, G. Fève
- Physics
- 1 January 2014
The edge channels of the quantum Hall effect provide one dimensional chiral and ballistic wires along which electrons can be guided in an optics‐like setup. Electronic propagation can then be…
Josephson radiation from gapless Andreev bound states in HgTe-based topological junctions
- R. Deacon, J. Wiedenmann, L. Molenkamp
- Physics
- 31 March 2016
Frequency analysis of the rf emission of oscillating Josephson supercurrent is a powerful passive way of probing properties of topological Josephson junctions. In particular, measurements of the…
Coherence measures for heralded single-photon sources
- E. Bocquillon, C. Couteau, M. Razavi, R. Laflamme, G. Weihs
- Mathematics
- 10 July 2008
We show that the Mobius function mu(n) is strongly asymptotically orthogonal to any polynomial nilsequence n -> F(g(n)L). Here, G is a simply-connected nilpotent Lie group with a discrete and…
Current noise spectrum of a single particle emitter: theory and experiment
- F. Parmentier, E. Bocquillon, M. Buttiker
- Physics
- 14 November 2011
The controlled and accurate emission of coherent electronic wave packets is of prime importance for future applications of nano-scale electronics. Here we present a theoretical and experimental…
Separation of neutral and charge modes in one-dimensional chiral edge channels.
- E. Bocquillon, V. Freulon, G. Fève
- PhysicsNature Communications
- 14 May 2013
The direct observation of the collective neutral and charge modes of the two chiral co-propagating edge channels of opposite spins of the quantum Hall effect at filling factor 2 is reported.
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