TY  - JOUR
AU  - Pejić, Milan
AU  - Pržulj, Željko
AU  - Čevizović, Dalibor
AU  - Lazarides, Nikos
AU  - Tsironis, Giorgos P.
AU  - Ivić, Zoran
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10524
AB  - We study quantum features of electromagnetic radiation propagating in a one-dimensional superconducting quantum metamaterial composed of an infinite chain of charge qubits placed within two stripe massive superconducting resonators. The quantum-mechanical model is derived assuming weak fields and that, at low temperatures, each qubit is either unoccupied or occupied by a single Cooper pair. We demonstrate the emergence of two bands of single-photon qubit bound states with the energies lying outside the photon continuum—one is above and the second slightly below the linear photon band. The higher energy band varies slowly with the qubit-photon center of mass quasimomentum. It becomes practically flat provided that the electromagnetic energy is far below the Josephson energy when the latter is small compared to the charging energy. The dispersion of the lower band is practically identical to that of free photons. The emergence of bound states may cause radiation trapping indicating possible applicability for the control of photon transport in superconducting qubit-based artificial media.
T2  - Physical Review B
T1  - Qubit-photon bound states in superconducting metamaterials
VL  - 105
IS  - 23
SP  - 235439
DO  - 10.1103/PhysRevB.105.235439
ER  - 

@article{
author = "Pejić, Milan and Pržulj, Željko and Čevizović, Dalibor and Lazarides, Nikos and Tsironis, Giorgos P. and Ivić, Zoran",
year = "2022",
abstract = "We study quantum features of electromagnetic radiation propagating in a one-dimensional superconducting quantum metamaterial composed of an infinite chain of charge qubits placed within two stripe massive superconducting resonators. The quantum-mechanical model is derived assuming weak fields and that, at low temperatures, each qubit is either unoccupied or occupied by a single Cooper pair. We demonstrate the emergence of two bands of single-photon qubit bound states with the energies lying outside the photon continuum—one is above and the second slightly below the linear photon band. The higher energy band varies slowly with the qubit-photon center of mass quasimomentum. It becomes practically flat provided that the electromagnetic energy is far below the Josephson energy when the latter is small compared to the charging energy. The dispersion of the lower band is practically identical to that of free photons. The emergence of bound states may cause radiation trapping indicating possible applicability for the control of photon transport in superconducting qubit-based artificial media.",
journal = "Physical Review B",
title = "Qubit-photon bound states in superconducting metamaterials",
volume = "105",
number = "23",
pages = "235439",
doi = "10.1103/PhysRevB.105.235439"
}

Pejić, M., Pržulj, Ž., Čevizović, D., Lazarides, N., Tsironis, G. P.,& Ivić, Z.. (2022). Qubit-photon bound states in superconducting metamaterials. in Physical Review B, 105(23), 235439.
https://doi.org/10.1103/PhysRevB.105.235439

Pejić M, Pržulj Ž, Čevizović D, Lazarides N, Tsironis GP, Ivić Z. Qubit-photon bound states in superconducting metamaterials. in Physical Review B. 2022;105(23):235439.
doi:10.1103/PhysRevB.105.235439 .

Pejić, Milan, Pržulj, Željko, Čevizović, Dalibor, Lazarides, Nikos, Tsironis, Giorgos P., Ivić, Zoran, "Qubit-photon bound states in superconducting metamaterials" in Physical Review B, 105, no. 23 (2022):235439,
https://doi.org/10.1103/PhysRevB.105.235439 . .