Quantum Fisher and skew information for Unruh accelerated Dirac qubit Subhashish Banerjee, Ashutosh Kumar Alok and S. Omkar Eur. Phys. J. C, 76 8 (2016) 437 Published online: 04 August 2016 DOI: 10.1140/epjc/s10052-016-4290-7