Abstract
Continuous variable entangled states and especially entangled coherent states have attracted increasing interest in the Geld of quantum information processing. The characteristic features of the superposition of quantum states can be found in the literature. Because of these significant findings, we introduce and investigate a special superposition of multipartite entangled coherent states. We prove that the free-traveling optical field scheme can generate such a superposed state. Using a geometric measure of entanglement, we then investigate the correlation behavior of the superposed state.
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D. M. Greenberger, M. Home, and A. Zeilinger, “Going beyond Bell’s theorem,” in: Bell’s Theorem, Quantum Theory, and Conceptions of the Universe (Fund. Theor. Phys., Vol. 37. M. Kafatos, ed.), Kluwer, Dordrecht (1989), pp. 69–72.
W. Dur, G. Vidal, and J. I. Cirac, “Three qubits can be entangled in two inequivalent ways,” Phys. Rev. A, 62, 062314 (2000); arXiv:quant-ph/0005115v2 (2000).
R. Raussendorf and H. J. Briegel, “A one-way quantum computer,” Phys. Rev. Lett., 86, 5188–5191 (2001).
R. H. Dicke, “Coherence in spontaneous radiation processes,” Phys. Rev., 93, 99–110 (1954).
X. Wang and B. C. Sanders, “Multipartite entangled coherent states,” Phys. Rev. A, 65, 012303 (2001): arXiv:quant-ph/0104011v2 (2001).
N. B. An, “Optimal processing of quantum information via W-type entangled coherent states,” Phys. Rev. A, 69, 022315 (2004).
P. P. Munhoz, F. L. Semiao, A. Vidiella-Barranco, and J. A. Roversi, “Cluster-type entangled coherent states,” Phys. Lett. A, 372, 3580–3585 (2008); arXiv:0705.1549v3 [quant-ph] (2007).
E. M. Becerra-Castro, W. B. Cardoso, A. T. Avelar, and B. Baseia, “Generation of a 4-qubit cluster of entangled coherent states in bimodal QED cavities,” J. Phys. B, 41, 085505 (2008); arXiv:0709.0010v2 [quant-ph] (2007).
N. B. An and J. Kim, “Cluster-type entangled coherent states: generation and application,” Phys. Rev. A, 80, 042316 (2009).
X. Wang, “Quantum teleportation of entangled coherent states,” Phys. Rev. A, 64, 022302 (2001); arXiv:quant-ph/0102048v2 (2001).
H. Jeong and M. S. Kim, “Efficient quantum computation using coherent states,” Phys. Rev. A, 65, 042305 (2002); arXiv:quant-ph/0109077v2 (2001).
N. B. An, “Teleportation of coherent-state superpositions within a network,” Phys. Rev. A, 68, 022321 (2003).
H. Prakash, N. Chandra, R. Prakash, and Shivani, “Improving the teleportation of entangled coherent states,” Phys. Rev. A, 75, 044305 (2007).
A. M. Lance, T. Symul, W. P. Bowen, B. C. Sanders, and P. K. Lam, “Tripartite quantum state sharing,” Phys. Rev. Lett., 92, 177903 (2004); arXiv:quant-ph/0311015v2 (2003).
O. Abbasi and M. K. Tavassoly, “Superposition of two nonlinear coherent states out of phase and their nonclassical properties,” Opt. Commun., 282, 3737–3745 (2009); arXiv:0907.0083vl [quant-ph] (2009).
M. C. de Oliveira and W. J. Munro, “Quantum computation with mesoscopic superposition states,” Phys. Rev. A, 61, 042309 (2000); arXiv:quant-ph/0001018vl (2000).
S. J. van Enk and O. Hirota, “Entangled coherent states: Teleportation and decoherence,” Phys. Rev. A, 64, 022313 (2001); arXiv:quant-ph/0012086vl (2000).
T. C. Ralph, A. Gilchrist, G. J. Milburn, W. J. Munro, and S. Glancy, “Quantum computation with optical coherent states,” Phys. Rev. A, 68, 042319 (2003); arXiv:quant-ph/0306004vl (2003).
P. Marek and J. Fiurasek, “Elementary gates for quantum information with superposed coherent states,” Phys. Rev. A, 82, 014304 (2010); arXiv:1006.3644v2 [quant-ph] (2010).
S. L. Braunstein and H. J. Kimble, “Dense coding for continuous variables,” Phys. Rev. A, 61, 042302 (2000); arXiv:quant-ph/9910010vl (1999).
D. Das, S. Dogra, K. Dorai, and Arvind, “Experimental construction of a W superposition state and its equivalence to the Greenberger-Horne-Zeilinger state under local filtration,” Phys. Rev. A, 92, 022307 (2015); arXiv:1504.04856vl [quant-ph] (2015).
A. R. Usha Devi, Sudha, and A. K. Rajagopal, “Majorana representation of symmetric multiqubit states,” Quant. Inf. Process, 11, 685–710 (2012).
F. Ozaydin, A. A. Altintas, S. Bugu, and C. Yesilyurt, “Quantum Fisher information of N particles in the superposition of W and GHZ states,” Internat. J. Theor. Phys., 52, 2977–2980 (2013).
L. Tang and F. Liu, “Generation of multipartite entangled coherent states via a superconducting charge qubit,” Phys. Lett. A, 378, 2074–2078 (2014).
N. Behzadi, B. Ahansaz, and S. Kazemi, “Constructing robust entangled coherent GHZ and W states via a cavity QED system,” Internat. J. Theor. Phys., 55, 1577–1592 (2016).
L.-M. Kuang and L. Zhou, “Generation of atom-photon entangled states in atomic Bose-Einstein condensate via electromagnetically induced transparency,” Phys. Rev. A, 68, 043606 (2003); arXiv:quant-ph/0402031vl (2004).
L.-M. Kuang, Z.-B. Chen, and J.-W. Pan, “Generation of entangled coherent states for distant Bose-Einstein condensates via electromagnetically induced transparency,” Phys. Rev. A, 76, 052324 (2007); arXiv:0903.1210vl [quant-ph] (2009).
H. Jeong and N. B. An, “Greenberger-Horne-Zeilinger-type and W-type entangled coherent states: Generation and Bell-type inequality tests without photon counting,” Phys. Rev. A, 74, 022104 (2006); arXiv:quant-ph/0606109v2 (2006).
Y. Guo and L.-M. Kuang, “Near-deterministic generation of four-mode TF-type entangled coherent states,” J. Phys. B, 40, 3309–3318 (2007).
Y. Guo and L.-M. Kuang, “Generation of three-mode W-type entangled coherent states in free-travelling optical fields,” Chinese Opt. Lett., 6, 303–306 (2008).
H. Ollivier and W. H. Zurek, “Quantum discord: A measure of the quantumness of correlations,” Phys. Rev. Lett., 88, 017901 (2001); arXiv:quant-ph/0105072v3 (2001).
S. Luo and S. Fu, “Measurement-induced nonlocality,” Phys. Rev. Lett., 106, 120401 (2011).
R. Hubener, M. Kleinmann, T.-C. Wei, C. Gonzalez-Guillen, and O. Guhne, “Geometric measure of entanglement for symmetric states,” Phys. Rev. A, 80, 032324 (2009); arXiv:0905.4822v2 [quant-ph] (2009).
J. Claudon, J. Bleuse, N. S. Malik, M. Bazin, P. Jaffrennou, N. Gregersen, C. Sauvan, P. Lalanne, and J.-M. Gérard, “A highly efficient single-photon source based on a quantum dot in a photonic nanowire,” Nature Photonics, 4, 174–177 (2010).
C. C. Gerry and P. Knight, Introductory Quantum Optics, Cambridge Univ. Press, Cambridge (2005).
T. Peyronel, O. Firstenberg, Q.-Y. Liang, S. Hofferberth, A. V. Gorshkov, T. Pohl, M. D. Lukin, and V. Vuletic, “Quantum nonlinear optics with single photons enabled by strongly interacting atoms,” Nature, 488, 57–60 (2012).
J. Stanojevic, V. Parigi, E. Bimbard, A. Ourjoumtsev, and P. Grangier, “Dispersive optical nonlinearities in a Rydberg electromagnetically-induced-transparency medium,” Phys. Rev. A, 88, 053845 (2013).
O. Firstenberg, T. Peyronel, Q.-Y. Liang, A. V. Gorshkov, M. D. Lukin, and V. Vuletic, “Attractive photons in a quantum nonlinear medium,” Nature, 502, 71–75 (2013).
Z. Bai and G. Huang, “Enhanced third-order and fifth-order Kerr nonlinearities in a cold atomic system via Rydberg-Rydberg interaction,” Opt. Express, 24, 4442–4461 (2016); arXiv:1604.00585vl [physics.optics] (2016).
L. S. Costanzo, A. S. Coelho, N. Biagi, J. Fiuášek, M. Bellini, and A. Zavatta, “Measurement-induced strong Kerr nonlinearity for weak quantum states of light,” Phys. Rev. Lett., 119, 013601 (2017); arXiv:1706.07018vl [quant-ph] (2017).
H. Qian, Y. Xiao, and Z. Liu, “Giant Kerr response of ultrathin gold films from quantum size effect,” Nature Commun., 7, 13153 (2016).
M. M. Müller, A. Kölle, R. Löw, T. Pfau, T. Calarco, and S. Montangero, “Room-temperature Rydberg single-photon source,” Phys. Rev. A, 87, 053412 (2013); arXiv:1212.2811vl [quant-ph] (2012).
M. Khazali, K. Heshami, and C. Simon, “Single-photon source based on Rydberg exciton blockade,” J. Phys. B, 50, 215301 (2017); arXiv:1702.01213vl [quant-ph] (2017).
P. Parashar and S. Rana, “Entanglement and discord of the superposition of Greenberger-Horne-Zeilinger states,” Phys. Rev. A, 83, 032301 (2011).
Acknowledgments
The author expresses utmost thanks to Professors S. J. Akhtarshenas and M. K. Tavassoly for their helpful comments and suggestions, which substantially improved the contents of the paper.
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Prepared from an English manuscript submitted by the author; for the Russian version, see Teoreticheskaya i Matematicheskaya Fizika, Vol. 200, No. 1, pp. 96–105, July, 2019.
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Miry, S.R. Superposition of Entangled Coherent States: Physical Realization and Properties. Theor Math Phys 200, 1006–1014 (2019). https://doi.org/10.1134/S0040577919070055
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DOI: https://doi.org/10.1134/S0040577919070055