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Showing 2023 · quant-phShow all
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quant-ph2023★ 12 cited
The effect of thermal photons on exceptional points in coupled resonators
Grzegorz Chimczak, Anna Kowalewska-Kudłaszyk, Ewelina Lange +2
We analyse two quantum systems with hidden parity-time (PT) symmetry: one is an optical device, whereas another is a superconducting microwave-frequency device. To investigate thei…
quant-ph2023★ 17 cited
Experimental hierarchy of two-qubit quantum correlations without state tomography
Shilan Abo, Jan Soubusta, Kateřina Jiráková +4
A Werner state, which is the singlet Bell state affected by white noise, is a prototype example of states, which can reveal a hierarchy of quantum entanglement, steering, and Bell…