Quantum Fisher Information of Bipartitions of W States
ACTA PHYSICA POLONICA A, cilt.127, sa.4, ss.1233-1235, 2015 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 127 Sayı: 4
- Basım Tarihi: 2015
- Doi Numarası: 10.12693/aphyspola.127.1233
- Dergi Adı: ACTA PHYSICA POLONICA A
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.1233-1235
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- İstanbul Üniversitesi Adresli: Hayır
Özet
We study the quantum Fisher information (QFI) of W states and W-like states under decoherence. In particular, we find that on the contrary to amplitude damping and depolarizing decoherence, a W-like state of 3 qubits obtained by discarding 1 qubit of a genuine W state of 4 qubits is more robust than a genuine W state of 3 qubits under amplitude amplifying and phase damping decoherence.