Details
| Original language | English |
|---|---|
| Article number | 51 |
| Pages (from-to) | 1-8 |
| Number of pages | 8 |
| Journal | Appl. Phys. B |
| Volume | 122 |
| Issue number | 3 |
| Publication status | Published - 1 Mar 2016 |
Abstract
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physics and Astronomy (miscellaneous)
- Physics and Astronomy(all)
- General Physics and Astronomy
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Appl. Phys. B, Vol. 122, No. 3, 51, 01.03.2016, p. 1-8.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Entanglement Distillation using the Exchange Interaction
AU - Auer, Adrian
AU - Schwonnek, René
AU - Schoder, Christian
AU - Dammeier, Lars
AU - Werner, Reinhard F.
AU - Burkard, Guido
N1 - Funding information: A. A. and G. B. acknowledge funding from the BMBF under the program Q.com-HL and from the DFG within SFB 767. R. S. and R. F. W. acknowledge funding from the BMBF under the program Q.com-Q, R. F. W. additionally acknowledges the ERC grand DQSIM, and L. D. is funded from the DFG within RTG 1991. Publisher Copyright: © 2016, Springer-Verlag Berlin Heidelberg.
PY - 2016/3/1
Y1 - 2016/3/1
N2 - A key ingredient of quantum repeaters is entanglement distillation, i.e., the generation of high-fidelity entangled qubits from a larger set of pairs with lower fidelity. Here, we present entanglement distillation protocols based on qubit couplings that originate from exchange interaction. First, we make use of asymmetric bilateral two-qubit operations generated from anisotropic exchange interaction and show how to distill entanglement using two input pairs. We furthermore consider the case of three input pairs coupled through isotropic exchange. Here, we characterize a set of protocols which are optimizing the tradeoff between the fidelity increase and the probability of a successful run.
AB - A key ingredient of quantum repeaters is entanglement distillation, i.e., the generation of high-fidelity entangled qubits from a larger set of pairs with lower fidelity. Here, we present entanglement distillation protocols based on qubit couplings that originate from exchange interaction. First, we make use of asymmetric bilateral two-qubit operations generated from anisotropic exchange interaction and show how to distill entanglement using two input pairs. We furthermore consider the case of three input pairs coupled through isotropic exchange. Here, we characterize a set of protocols which are optimizing the tradeoff between the fidelity increase and the probability of a successful run.
UR - http://www.scopus.com/inward/record.url?scp=84961210581&partnerID=8YFLogxK
U2 - 10.1007/s00340-015-6286-7
DO - 10.1007/s00340-015-6286-7
M3 - Article
VL - 122
SP - 1
EP - 8
JO - Appl. Phys. B
JF - Appl. Phys. B
IS - 3
M1 - 51
ER -