Cooperative entangled effects between mode components of optical micro-fiber (or micro-cavity) stimulated by two ensembles of atoms in non-linear interaction
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PASLARI, Tatiana R., ENAKI, Nicolae. Cooperative entangled effects between mode components of optical micro-fiber (or micro-cavity) stimulated by two ensembles of atoms in non-linear interaction. In: Balkan Workshop on Applied Physics: IBWAP 2018, 10-13 iulie 2018, Constanța. Constanța, România : Ovidius University of Constanta, 2018, Ediția a 18-a, p. 142.
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Balkan Workshop on Applied Physics
Ediția a 18-a, 2018
Seminarul "Balkan Workshop on Applied Physics"
Constanța, Romania, 10-13 iulie 2018

Cooperative entangled effects between mode components of optical micro-fiber (or micro-cavity) stimulated by two ensembles of atoms in non-linear interaction

CZU: 621.38+530.182

Pag. 142-142

Paslari Tatiana R.12, Enaki Nicolae1
 
1 Institute of Applied Physics,
2 Moldova State University
 
 
Disponibil în IBN: 1 decembrie 2021


Rezumat

Nonlinear Cooperative phenomena opens the new possibilities in the realization and application of entangled states between the photons and radiators [1]. The preparation of entanglement states of photons in two or more modes was the subject of the discussions in the quantum processing systems (QPS) [2, 3]. These effects admit the new discussions and investigations in the fundamental description of the multi -particle entangled states named bound entanglement [2, 3]. The collective effects between the cavity photons open the conception of coherence between the bi-particles or between the Stokes and the pump and anti-Stokes photons in the cooperative Raman process (CRP) [4]. Many authors [2, 3] emphasized, that the entanglement of multi-mode particles cannot be distilled into pure entanglement under local operations of communication, a class of the multi-particle entanglement is considered useless bound entanglement for any quantum information processing. According to the authors of Ref. [5] report the first experimental preparation of a bound-entangled state. A standard scheme in quantum information theory consists of two distant parts. The Ref. [6] produced the bound entanglement in the polarization of four optical photons, produced from parametric down-conversion. Within a range of the parameter, they have shown, that this state is entangled and indistinguishable. The realization of cooperative interaction between different subsystems in two-quantum processes is proposed in many investigations of the last time [7]. According to these concepts the multi-particle entangled states become more sophisticated than free entangled states named in many situations as an undistinguished entanglement between the particles [8]. In some situations the so called bound entangled needs the new redefinition in order to describe the inseparable process which takes place between the photons belonging to same cavity modes. In such situation is better to study the quantum proprieties of collective modes, created in the nonlinear interactions between the traditional cavity modes of the electromagnetic field (EMF). Keywords:Quantum optical phenomena in absorbing; Nonlinear optics; Stimulated Raman scattering; Cooperative phenomena in quantum optical systems Acknowledgement This paper was supported by the institutional project: No. 15.817.02.07F, No. EAP SFPP 984890 and 18.80012.50.33A References [1] Enaki N.A., “Non-Linear Cooperative Effects in Open Quantum Systems: Entanglement & Second Order Coherence”, NY, Nova Science Publishers, 355 p. (2015). [2] Pan, J.-W. , Simon, C., Brukner, C. Zeilinger, A. “Entanglement purification for quantum communication”. Nature, 410, 1067-1070. (2001). [3] O'Brien J. L., Furusawa A., Vuckovic, J. “Photonic quantum technologies”, Nature the Photonics, 3, 687 – 695, (2009). [4] Enaki, N., Turcan, M., “Cooperative scattering effect between Stokes and anti-Stokes field stimulated by a stream of atoms”. Optics Communications, 285(5), 686-692 (2012). [5] Amselem E., Bourennane M., “Experimental four-qubit bound entanglement”, Nature Physics, 5, 748– 752 (2009). [6] Lavoie J., Kaltenbaek R., Piani, M., Resch, K.J. “Experimental bound entanglement in a four-photon state”, Phys. Rev. Lett. 105 (13), 130501-4 (2010). [7] Kaneda F.; Shimizu R.; Misumori Y.; Kosaka H., Edamatsu K., “Generation and caracterisation of bound entanglement in optical qbits”, Progress in Informatics (Special issue: Quantum information technology), 8, 27-31 (2011). [8] Enaki N.A., Bazgan S., Ciobanu N., Turcan M., Paslari T., Ristoscu C., Vaseashta A., Mihailescu I. N., “Improvement in ultraviolet based decontamination rate using meta-materials”, Applied Surface Science, https://doi.org/10.1016/j.apsusc.2017.01.133 (2017).