Uncertainty Relations for Quantum Coherence
AbstractCoherence of a quantum state intrinsically depends on the choice of the reference basis. A natural question to ask is the following: if we use two or more incompatible reference bases, can there be some trade-off relation between the coherence measures in different reference bases? We show that the quantum coherence of a state as quantified by the relative entropy of coherence in two or more noncommuting reference bases respects uncertainty like relations for a given state of single and bipartite quantum systems. In the case of bipartite systems, we find that the presence of entanglement may tighten the above relation. Further, we find an upper bound on the sum of the relative entropies of coherence of bipartite quantum states in two noncommuting reference bases. Moreover, we provide an upper bound on the absolute value of the difference of the relative entropies of coherence calculated with respect to two incompatible bases. View Full-Text
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Singh, U.; Pati, A.K.; Bera, M.N. Uncertainty Relations for Quantum Coherence. Mathematics 2016, 4, 47.
Singh U, Pati AK, Bera MN. Uncertainty Relations for Quantum Coherence. Mathematics. 2016; 4(3):47.Chicago/Turabian Style
Singh, Uttam; Pati, Arun K.; Bera, Manabendra N. 2016. "Uncertainty Relations for Quantum Coherence." Mathematics 4, no. 3: 47.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.