Quantum computation and quantum information
Quantum computation and quantum information
Distinguishing quantum channels via magic squares game
Quantum Information Processing
Geometric measure of quantum discord under decoherence
Quantum Information & Computation
Non-Markovian decoherence dynamics of entangled coherent states
Quantum Information & Computation
Entanglement measure for pure six-qubit quantum states
Quantum Information Processing
Decoherence and entanglement degradation of a qubit-qutrit system in non-inertial frames
Quantum Information Processing
Relativity of mixed entangled states
Quantum Information & Computation
Entanglement dynamics of non-inertial observers in a correlated environment
Quantum Information Processing
Three-player quantum Kolkata restaurant problem under decoherence
Quantum Information Processing
Quantum Information Processing
Quantum decoherence of Dirac fields in non-inertial frames beyond the single-mode approximation
Quantum Information Processing
Quantum discord amplification of fermionic systems in an accelerated frame
Quantum Information Processing
Multipartite concurrence for $$X$$X states under decoherence
Quantum Information Processing
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Quantum discord quantifies the total non-classical correlations in mixed states. It is the difference between total correlation, measured by quantum mutual information, and the classical correlation. Another step forward towards the quantification of quantum discord was by Dakić et al. (Phys Rev Lett 105:190502, 2010) who introduced the geometric measure of quantum discord (GMQD) and derived an explicit formula for a two-qubit state. Recently, Luo and Fu (Phys Rev Lett 106:120401, 2011) introduced measurement-induced nonlocality (MIN) as a measure of nonlocality for a bipartite quantum system. The dynamics of GMQD is recently considered by Song et al. (arXiv: quant/ph.1203.3356) and Zhang et al. (Eur Phys J D 66:34, 2012) for inertial observers. However, the topic requires due attention in noninertial frames, particularly, from the perspective of MIN. Here I consider $$X$$ -structured bipartite quantum system in noninertial frames and analyze the decoherence dynamics of GMQD and MIN at finite temperature. The dynamics under the influence of amplitude damping, depolarizing and phase flip channels is discussed. It is worth-noting that initial state entanglement plays an important role in bipartite states. It is possible to distinguish the Bell, Werner and general type initial quantum states using GMQD. Sudden transition in the behaviour of GMQD and MIN occurs depending upon the mean photon number of the local environment. The transition behaviour disappears for larger values of $$\bar{n},$$ i.e. $$\bar{n}0.3.$$ It becomes more prominent, when environmental noise is introduced in the system. In the presence of environmental noise, as we increase the value of acceleration $$r$$ , GMQD and MIN decay due to Unruh effect. The effect is prominent for the phase flip and amplitude damping channels. However, in case of depolarizing channel, no sudden change in the behaviour of GMQD and MIN is observed. The environmental noise has stronger affect on the dynamics of GMQD and MIN as compared to the Unruh effect. Furthermore, Werner like states are more robust than General type initial states at finite temperature.