TY - JOUR
T1 - X states of the same spectrum and entanglement as all two-qubit states
AU - Hedemann, Samuel R.
N1 - Publisher Copyright:
© 2018, Springer Science+Business Media, LLC, part of Springer Nature.
PY - 2018/11/1
Y1 - 2018/11/1
N2 - We present an explicit family of two-qubit X states with entanglement-preserving unitary equivalence to the set of general states; that is, for any spectrum–entanglement combination achievable by general states, this family contains an X state of the same spectrum and entanglement.
AB - We present an explicit family of two-qubit X states with entanglement-preserving unitary equivalence to the set of general states; that is, for any spectrum–entanglement combination achievable by general states, this family contains an X state of the same spectrum and entanglement.
KW - Concurrence
KW - Entanglement
KW - Entanglement-preserving unitary
KW - TGX states
KW - True-generalized X states
KW - X states
UR - http://www.scopus.com/inward/record.url?scp=85053469871&partnerID=8YFLogxK
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U2 - 10.1007/s11128-018-2061-0
DO - 10.1007/s11128-018-2061-0
M3 - Article
AN - SCOPUS:85053469871
SN - 1570-0755
VL - 17
JO - Quantum Information Processing
JF - Quantum Information Processing
IS - 11
M1 - 293
ER -