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http://hdl.handle.net/2289/7464| Title: | Likelihood theory in a quantum world: Tests with quantum coins and computers |
| Other Titles: | Rapid communication |
| Authors: | Maitra, Arpita Samuel, J. Sinha, Supurna |
| Keywords: | Likelihood theory quantum state discrimination IBM quantum computer quantum advantage |
| Issue Date: | Mar-2020 |
| Publisher: | Indian Academy of Sciences, Bangalore, India. |
| Citation: | Pramana, 2020, Vol.94, p57 |
| Abstract: | By repeated trials, one can determine the fairness of a classical coin with a confidence which grows with the number of trials. A quantum coin can be in a superposition of heads and tails and its state is most generally a density matrix. Given a string of qubits representing a series of trials, one can measure them individually and determine the state with a certain confidence. We show that there is an improved strategy which measures the qubits after entangling them, which leads to a greater confidence. This strategy is demonstrated on the simulation facility of IBM quantum computers. |
| Description: | Open Access |
| URI: | http://hdl.handle.net/2289/7464 |
| ISSN: | 0304-4289 0973-7111 (online) |
| Alternative Location: | https://arxiv.org/abs/1901.10704 https://doi.org/10.1007/s12043-020-1926-9 |
| Copyright: | 2020, Indian Academy of Sciences |
| Appears in Collections: | Research Papers (TP) |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2020_Pramana_94_57.pdf Restricted Access | Open Access | 292.21 kB | Adobe PDF | View/Open Request a copy |
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