# Shot-noise spectrum of superradiant entangled excitons

@article{Chen2004ShotnoiseSO, title={Shot-noise spectrum of superradiant entangled excitons}, author={Yi No Chen and Tobias Brandes and Chun Mei Li and D. S. Chuu}, journal={Physical Review B}, year={2004}, volume={69}, pages={245323-1-245323-4} }

Department of Physics, UMIST, P.O. Box 88, Manchester, M60 1QD, United Kingdom(Dated: February 2, 2008)The shot noise produced by tunneling of electrons and holes into a double dot system incorporatedinside a p-i-n junction is investigated theoretically. The enhancement of the shot noise is shownto originate from the entangled electron-hole pair created by superradiance. The analogy to thesuperconducting cooper pair box is pointed out. A series of Zeno-like measurements is shown todestroy the… Expand

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#### References

SHOWING 1-10 OF 33 REFERENCES

Proposal for production and detection of entangled electron-hole pairs in a degenerate electron gas.

- Physics, Medicine
- Physical review letters
- 2003

We demonstrate theoretically that the shot noise produced by a tunnel barrier in a two-channel conductor violates a Bell inequality. The nonlocality is shown to originate from entangled electron-hole… Expand

Current detection of superradiance and induced entanglement of double quantum dot excitons.

- Physics, Medicine
- Physical review letters
- 2003

It is found that the stationary current shows oscillatory behavior as one varies the interdot distance, and the amplitude of oscillation can be increased by incorporating the system into a microcavity. Expand

Regulated and entangled photons from a single quantum Dot

- Physics, Medicine
- Physical review letters
- 2000

It is proposed that this semiconductor device uses a single quantum dot as active medium embedded in a p- i- n junction and surrounded by a microcavity has the unique potential to generate pairs of entangled photons at a well-defined repetition rate. Expand

ENTANGLED BELL AND GREENBERGER-HORNE-ZEILINGER STATES OF EXCITONS IN COUPLED QUANTUM DOTS

- Physics
- 1999

We show that excitons in coupled quantum dots are ideal candidates for reliable preparation of entangled states in solid-state systems. An optically controlled exciton transfer process is shown to… Expand

Biexcitons in coupled quantum dots as a source of entangled photons

- Physics
- 2002

We study biexcitonic states in two tunnel-coupled semiconductor quantum dots and show that such systems provide the possibility to produce polarization-entangled photons or spin-entangled electrons… Expand

Shot noise spectrum of open dissipative quantum two-level systems.

- Physics, Medicine
- Physical review letters
- 2004

This work combines (non-)Markovian master equations with correlation functions in Laplace space to derive a noise formula for both weak and strong coupling to the bath, demonstrating that the dephasing and relaxation rates of the two-level systems can be extracted from noise. Expand

Impurity scattering induced entanglement of ballistic electrons.

- Physics, Medicine
- Physical review letters
- 2001

This work shows how entanglement between two conduction electrons is generated in the presence of a localized magnetic impurity embedded in an otherwise ballistic conductor of special geometry with localized spin placed at the site of the beam splitter. Expand

Ultralong dephasing time in InGaAs quantum dots.

- Physics, Medicine
- Physical review letters
- 2001

Between 7 and 100 K the polarization decay has two distinct components resulting in a non-Lorentzian line shape with a lifetime-limited zero-phonon line and a broadband from elastic exciton-acoustic phonon interactions. Expand

Long lived coherence in self-assembled quantum dots.

- Medicine, Physics
- Physical review letters
- 2001

Time-resolved luminescence measurements show a lifetime of the dot ground state of 800 ps, demonstrating the presence of pure dephasing at finite temperature, and the homogeneous width is lifetime limited only at temperatures approaching 0 K. Expand

Electron entanglement via a quantum dot.

- Physics, Medicine
- Physical review letters
- 2002

This approach is a four-wave mixing process analogous to the photon entanglement generated by a chi((3)) parametric amplifier, and, in its absence, the singlet state vanishes. Expand