8.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Leiden Observatory3.6k papers
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19 papers · 2 filters
Voltage probe model of spin decay in a chaotic quantum dot, with applications to spin-flip noise and entanglement production
B. Michaelis, C. W. J. Beenakker
The voltage probe model is a model of incoherent scattering in quantum transport. Here we use this model to study the effect of spin-flip scattering on electrical conduction throug…
Quantum Point Contacts
H. van Houten, C. W. J. Beenakker
1. Quantized conductance 2. When 1 mode = 1 atom 3. Photons and Cooper pairs 4. Thermal analogues 5. Shot noise 6. Solid-state electron optics 7. Ultimate confinement 8. Landauer f…
Shot Noise Detection on a Carbon Nanotube Quantum Dot
E. Onac, F. Balestro, B. Trauzettel +2
An on-chip detection scheme for high frequency signals is used to detect noise generated by a quantum dot formed in a single wall carbon nanotube. The noise detection is based on p…
Oxygen enhanced atomic chain formation
W. H. A. Thijssen, D. Marjenburgh, R. H. Bremmer +1
We report experimental evidence for atomic chain formation during stretching of atomic-sized contacts for gold and silver, that is strongly enhanced due to oxygen incorporation. Wh…
Magnetic dipolar ordering and relaxation in the high-spin molecular cluster compound Mn6
A. Morello, F. L. Mettes, O. N. Bakharev +5
Few examples of magnetic systems displaying a transition to pure dipolar magnetic order are known to date, and single-molecule magnets can provide an interesting example. The molec…
Stroboscopic model of transport through a quantum dot with spin-orbit scattering
J. H. Bardarson, J. Tworzydlo, C. W. J. Beenakker
We present an open version of the symplectic kicked rotator as a stroboscopic model of electrical conduction through an open ballistic quantum dot with spin-orbit scattering. We de…
Atomic size oscillations in conductance histograms for gold nanowires and the influence of work hardening
I. K. Yanson, O. I. Shklyarevskii, Sz. Csonka +4
Nanowires of different nature have been shown to self-assemble as a function of stress at the contact between two macroscopic metallic leads. Here we demonstrate for gold wires tha…
Giant isotope effect in the incoherent tunneling specific heat of the molecular nanomagnet Fe8
M. Evangelisti, F. Luis, F. L. Mettes +2
Time-dependent specific heat experiments on the molecular nanomagnet Fe8 and the isotopic enriched analogue 57Fe8 are presented. The inclusion of the 57Fe nuclear spins leads to a…
Observation of shell effects in nanowires for the noble metals copper, silver and gold
A. I. Mares, J. M. van Ruitenbeek
We extend our previous shell effect observation in gold nanowires at room temperature under ultra high vacuum to the other two noble metals: silver and copper. Similar to gold, sil…
Quantum Tunneling Detection of Two-photon and Two-electron Processes
J. Tobiska, J. Danon, I. Snyman +1
We analyze the operation of a quantum tunneling detector coupled to a coherent conductor. We demonstrate that in a certain energy range the output of the detector is determined by…
Polarized Electric Current in Semiclassical Transport with Spin-Orbit Interaction
P. G. Silvestrov, E. G. Mishchenko
Semiclassical solutions of two-dimensional Schrodinger equation with spin-orbit interaction and smooth potential are considered. In the leading order, spin polarization is in-plane…
All-electronic coherent population trapping in quantum dots
B. Michaelis, C. Emary, C. W. J. Beenakker
We present a fully electronic analogue of coherent population trapping in quantum optics, based on destructive interference of single-electron tunneling between three quantum dots.…
Quantum-to-classical crossover for Andreev billiards in a magnetic field
M. C. Goorden, Ph. Jacquod, C. W. J. Beenakker
We extend the existing quasiclassical theory for the superconducting proximity effect in a chaotic quantum dot, to include a time-reversal-symmetry breaking magnetic field. Random-…
Dynamic response of trapped ultracold bosons on optical lattices
G. G. Batrouni, F. F. Assaad, R. T. Scalettar +1
We study the dynamic response of ultracold bosons trapped in one-dimensional optical lattices using Quantum Monte Carlo simulations of the boson Hubbard model with a confining pote…
Stub model for dephasing in a quantum dot
C. W. J. Beenakker, B. Michaelis
As an alternative to Buttiker's dephasing lead model, we examine a dephasing stub. Both models are phenomenological ways to introduce decoherence in chaotic scattering by a quantum…
Transfer of entanglement from electrons to photons by optical selection rules
M. Titov, B. Trauzettel, B. Michaelis +1
The entanglement transfer from electrons localized in a pair of quantum dots to circularly polarized photons is governed by optical selection rules, enforced by conservation of ang…
Entangled microwave photons from quantum dots
C. Emary, B. Trauzettel, C. W. J. Beenakker
We describe a mechanism for the production of polarisation-entangled microwaves using intra-band transitions in a pair of quantum dots. This proposal relies neither on spin-orbit c…
Optimal spin-entangled electron-hole pair pump
C. W. J. Beenakker, M. Titov, B. Trauzettel
A nonperturbative theory is presented for the creation by an oscillating potential of spin-entangled electron-hole pairs in the Fermi sea. In the weak potential limit, considered e…
Method to determine defect positions below a metal surface by STM
Ye. S. Avotina, Yu. A. Kolesnichenko, A. N. Omelyanchouk +2
The oscillatory voltage dependence of the conductance of a quantum point contact in the presence of a single point-like defect has been analyzed theoretically. Such signals are det…