Name
Title | ||
|---|---|---|
Lower limits of spin detection efficiency for two-parameter two-qubit (TPTQ) states with non-ideal ferromagnetic detectors. |
Abstract | ||
|---|---|---|
We have investigated a TPTQ state as an input state of a non-ideal ferromagnetic detectors. Minimal spin polarization required to demonstrate spin entanglement according to entanglement witness and CHSH inequality with respect to (w.r.t.) their two free parameters have been found, and we have numerically shown that the entanglement witness is less stringent than the direct tests of Bell's inequality in the form of CHSH in the entangled limits of its free parameters. In addition, the lower limits of spin detection efficiency fulfilling secure cryptographic key against eavesdropping have been derived. Finally, we have considered TPTQ state as an output of spin decoherence channel and the region of ballistic transmission time w.r.t. spin relaxation time and spin dephasing time has been found. |
Year | DOI | Venue |
|---|---|---|
2016 | 10.1007/s11128-016-1374-0 | Quantum Information Processing |
Keywords | Field | DocType |
Two-parameter two-qubit state,Bell’s inequality,CHSH inequality,Non-ideal ferromagnetic detector,Entanglement witness,Spin polarization,Spin detector efficiency | Dephasing,Spin-½,Entanglement witness,Quantum electrodynamics,Quantum entanglement,Quantum mechanics,CHSH inequality,Spin polarization,Quantum decoherence,Qubit,Physics | Journal |
Volume | Issue | ISSN |
15 | 10 | 1570-0755 |
Citations | PageRank | References |
1 | 0.45 | 3 |
Authors | ||
2 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Nayereh Majd | 1 | 1 | 0.45 |
| Zahra Ghasemi | 2 | 1 | 0.45 |