Готові списки джерел за темами / ENTANGLEMENT CRITERION

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Добірка наукової літератури з теми "ENTANGLEMENT CRITERION"

Автор: Grafiati

Опубліковано: 11 вересня 2023

Оновлено: 31 липня 2025

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Статті в журналах з теми "ENTANGLEMENT CRITERION"

Chen, Xiao-Yu, Li-Zhen Jiang, and Zhu-An Xu. "Necessary and sufficient criterion for k-separability of N-qubit noisy GHZ states." International Journal of Quantum Information 16, no. 04 (2018): 1850037. http://dx.doi.org/10.1142/s0219749918500375.

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A Multipartite entangled state has many different kinds of entanglements specified by the number of partitions. The most essential example of multipartite entanglement is the entanglement of multi-qubit Greenberger–Horne–Zeilinger (GHZ) state in white noise. We explicitly construct the entanglement witnesses for these states with stabilizer generators of the GHZ states. For an [Formula: see text] qubit GHZ state in white noise, we demonstrate the necessary and sufficient criterion of separability when it is divided into [Formula: see text] parties with [Formula: see text] for arbitrary [Formul

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Wang, Hailong, and Yunpeng Shi. "Multi-Mode Correlation in a Concurrent Parametric Amplifier." Photonics 9, no. 7 (2022): 443. http://dx.doi.org/10.3390/photonics9070443.

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A concurrent parametric amplifier consisting of two pump beams is used to investigate the possibility of generating multi-mode correlation and entanglement. The existence of three-mode entanglement is demonstrated by analyzing the violation degree of three-mode entanglement criteria, including the sufficient criterion, i.e., two-condition and optimal single-condition criterion, and necessary and sufficient criterion, i.e., positivity under partial transposition (PPT) criterion. Besides, two-mode entanglement generated from any pair is also studied by using the Duan criterion and PPT criterion.

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Cai, Chunxiao, Wenting Diao, Fupan Feng, et al. "Missed Detection of Entanglement in Two-Mode Squeezed States Based on the Inseparability Criterion." Applied Sciences 15, no. 3 (2025): 1013. https://doi.org/10.3390/app15031013.

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The inseparability criterion provides a straightforward and efficient method for identifying and quantifying two-mode Gaussian quantum entanglement, making it a crucial tool in quantum optics experiments. However, it is crucial to recognize that the inseparability criterion serves only as a sufficient condition for entanglement assessment, thereby posing a risk of missed detection during evaluation. This paper investigates the use of the inseparability criterion in assessing two-mode squeezed states, with a particular focus on examining missed entanglement detection due to entanglement asymmet

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QIU Shangfeng, XU Qiao, and ZHOU Xiao-qi. "Detection of Weak Entanglement Based on Quantum Steering." Acta Physica Sinica 74, no. 11 (2025): 0. https://doi.org/10.7498/aps.74.20241539.

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Quantum entanglement is a defining feature of quantum mechanics and lies at the heart of many quantum technologies. While entanglement is routinely observed in small-scale systems, detecting weak entanglement in large or noisy systems remains a significant challenge, as experimental imperfections can easily obscure fragile quantum correlations. A new weak entanglement detection criterion based on quantum steering has recently been proposed as a potential alternative to conventional entanglement witnesses. In this work, we provide a theoretical analysis comparing the detection capabilities of t

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Cheng, Wei, Fang Xu, and Hua Li. "A class of bound entangled states violating the Breuer–Hall criterion." Modern Physics Letters B 28, no. 20 (2014): 1450164. http://dx.doi.org/10.1142/s0217984914501644.

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A strong and computational entanglement criterion, i.e. the Breuer–Hall criterion, has been proposed independently by Breuer [Phys. Rev. Lett. 97 (2006) 080501; J. Phys. A: Math. Gen. 39 (2006) 11847] and Hall [J. Phys. A: Math. Gen. 39 (2006) 14119]. As the first explicit example, we show that the class of bound entangled states found by Fei et al. [Phys. Lett. A 352 (2006) 321] exactly violate the Breuer–Hall criterion. This example can be considered as one of the test platforms of a variety of entanglement criteria and may be helpful for us to develop more powerful entanglement criteria.

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SHI Jiajia, LIU Xiaomin, ZHANG Chong, XU Minghui, LIANG Yunyun, and ZHANG Jing. "Enhancement of optomicrowave and optomagnonic entanglements in a optomagnomechanical system with coherent feedback." Acta Physica Sinica 74, no. 9 (2025): 0. https://doi.org/10.7498/aps.74.20241801.

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Optomicrowave entanglement and optomagnonic entanglement have significant applications in constructing hybrid quantum network and optical controlling magnons. In this paper, a theoretical scheme of enhancing optomicrowave and optomagnonic entanglements is proposed, based on a coherent-feedback-assisted optomagnomechanical (OMM) system. By inserting a thin membrane between the input-output mirror and the high-reflective-mirror-attached YIG bridge, the system consists of four kinds of modes: optical mode, microwave mode, mechanical mode, and magnon mode. In this system, optical and microwave mod

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PING, YUN-XIA, BO ZHANG, ZE CHENG, and QINFENG XU. "TWO-MODE ENTANGLEMENT VIA SUPERPOSITIONS OF TWO-MODE COHERENT STATES." Modern Physics Letters B 21, no. 19 (2007): 1253–59. http://dx.doi.org/10.1142/s0217984907013584.

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Two-mode entanglement of superposition states from several two-mode coherent states is investigated according to the entanglement criterion.9 The dependence of entanglement on relative phase angle, coherent amplitude of each mode and phase angle is discussed. It is shown that under certain conditions the superposition states can exhibit entanglement properties.

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Hua, Zhang, and Wu Xiao-Hua. "Entanglement Criterion of N -Qubit State." Communications in Theoretical Physics 45, no. 4 (2006): 601–4. http://dx.doi.org/10.1088/0253-6102/45/4/006.

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Li, Jun, and Lin Chen. "Entanglement criterion via general symmetric informationally complete measurement." Journal of Physics A: Mathematical and Theoretical 55, no. 1 (2021): 015302. http://dx.doi.org/10.1088/1751-8121/ac3859.

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Abstract We propose entanglement criteria for multipartite systems via symmetric informationally complete measurement and general symmetric informationally complete measurement. We apply these criteria to detect entanglement of multipartite states, such as the convex of Bell states, entangled states mixed with white noise. It is shown that these criteria are stronger than some existing ones.

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Qi, Xianfei, and Haiyan Zhang. "The enhanced separability criteria based on equiangular tight frames." Laser Physics Letters 22, no. 1 (2024): 015204. https://doi.org/10.1088/1612-202x/ad97b0.

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Abstract The detection of quantum entanglement is an essential issue in the theory of quantum information. Recently, an elegant separability criterion to detect the entanglement of arbitrary-dimensional bipartite states is presented in Shi (2024 J. Phys. A: Math. Theor. 57 075302) by applying the positive operator valued measurements based on the equiangular tight frames (ETFs). Here we derive two enhanced separability criteria for detecting bipartite entanglement in arbitrary-dimensional quantum states using ETFs. Furthermore, we prove that they are not weaker than the criterion proposed in S

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Більше джерел

Дисертації з теми "ENTANGLEMENT CRITERION"

Liguori, Alexandra Magdalene. "Quantum Markovian dynamics and bipartite entanglement." Doctoral thesis, Università degli studi di Trieste, 2010. http://hdl.handle.net/10077/3583.

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2008/2009<br>In questa tesi di dottorato si sono studiati i cosiddetti sistemi quantistici aperti, cioè sistemi sici la cui interazione con l'ambiente esterno non può essere trascurata, da due prospettive: da un lato si sono caratterizzate le proprietà del bagno mediante grandezze siche del sottosistema immerso in esso; dall'altro si è studiato l' entanglement, dal punto di vista sia della sua generazione sia della sua evoluzione temporale, in sistemi bipartiti immersi e interagenti con un bagno esterno. La mia tesi di dottorato, Quantum Markovian Dynamics and Bipartite En- tanglemen

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Zander, Claudia. "Classical & quantum dynamics of information and entanglement properties of fermion systems." Thesis, University of Pretoria, 2012. http://hdl.handle.net/2263/28607.

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Due to their great importance, both from the fundamental and from the practical points of view, it is imperative that the various facets of the concepts of information and entanglement are explored systematically in connection with diverse physical systems and processes. These concepts are at the core of the emerging field of the Physics of Information. In this Thesis I investigate some aspects of the dynamics of information in both classical and quantum mechanical systems and then move on to explore entanglement in fermion systems by searching for novel ways to classify and quantify entanglem

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Lima, Rafael Bruno Barbosa. "Testemunha de emaranhamento generalizada." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/76/76131/tde-24042015-082357/.

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Desde o surgimento da mecânica quântica no início do século XX, ela vem sendo alvo de diversos estudos e suas característcas fazem com que a mesma seja descrita de forma totalmente diferente da teoria clássica. Com o aprofundamento em suas áreas, surgiram novos conceitos e a compreensão sobre a teoria da informação e computação quântica foi radicalmente mudada devido a uma propriedade básica da mecânica quântica, o emaranhamento. Assim, a popularização da ideia do computador quântico trouxe consigo uma série de pesquisas relacionadas a informação quântica e suas aplicações no mundo real. Nesta

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KALSON, SHWETA, and ANCHAL SINGH. "A FEW ENTANGLEMENT CRITERION FOR TWO-QUBIT AND TWO-QUDIT SYSTEMS BASED ON REALIGNMENT OPERATION." Thesis, 2022. http://dspace.dtu.ac.in:8080/jspui/handle/repository/19614.

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It is known that realignment crierion is necessary but not a sufficient criterion even for a two-qubit system. We have derived necessary and sufficient condition based on realignment operation for a particular class of two-qubit system and thus solved this problem partially for two-qubit system. We have shown that the lower bound of the trace norm of realigned form of the particular form of the density matrix exists if and only if the two-qubit state is entangled. The derived necessary and sufficient condition detects two-qubit entangled states, which are not detected by the realignment

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Книги з теми "ENTANGLEMENT CRITERION"

Zelinsky, Edward A. Untangling Entanglement. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190853952.003.0005.

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This chapter begins the transition from empirical to normative concerns, explaining and evaluating the diverse pattern of taxing and exempting churches and other religious institutions. Entanglement concerns help to explain this diversity. This chapter identifies which taxes carry the greatest (and least) threat of church-state entanglement. It also discusses why entanglement should be an important consideration when deciding to tax or exempt religious institutions. Either taxing or exempting churches and sectarian entities involves entanglement. Central to this discussion are such tax policy

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Частини книг з теми "ENTANGLEMENT CRITERION"

Nowostawski, Mariusz, and Andrzej Gecow. "Identity Criterion for Living Objects Based on the Entanglement Measure." In Semantic Methods for Knowledge Management and Communication. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-23418-7_15.

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Sun, Qingqing, and M. Suhail Zubairy. "Entanglement Criteria for Continuous-Variable Systems." In Classical, Semi-classical and Quantum Noise. Springer US, 2011. http://dx.doi.org/10.1007/978-1-4419-6624-7_17.

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Bertlmann, Reinhold A., and Nicolai Friis. "Entanglement and Separability." In Modern Quantum Theory. Oxford University PressOxford, 2023. http://dx.doi.org/10.1093/oso/9780199683338.003.0015.

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Abstract This chapter gives a detailed overview of entanglement for pure and mixed states. We begin with the Schmidt-decomposition theorem, which allows us to associate the subsystem mixedness of pure state with entanglement. We discuss the purification of mixed quantum states, the convexity of the set of separable states, and entanglement as a form of correlation. As an example we examine the Bloch decomposition for two qubits. For the detection of entanglement the Peres-Horodecki criterion is introduced, before we analyse the relation between entanglement and non-locality via the CHSH-Operat

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Saif M. Hassan, Ali, Waleed S.A. Hasan, and Mohamed A. Shukri. "Perspective chapter: Squeezing and Entanglement of two-modes Quantum $\mathrm{X}$ Waves." In Quantum Entanglement in High Energy Physics [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.1002263.

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Quantum theory of generalized X waves with orbital angular momentum in dispersive media, and the interaction of quantized X waves in quadratic nonlinear media were studied in (J. opt,20,065201 (2018)). We present a kind of phase matching, which is called velocity phase matching, and this phase matching can be used for determining the length of the nonlinear crystal or the interaction time in the experiment setup, to produce X waves with particular velocity v. Moreover, we introduce more analysis for the dependence of squeezing of X waves on its spectral order, and for spectral orders j>0, w

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Ferrera, Maurizio. "Technocracy." In Politics and Social Visions. Oxford University PressOxford, 2024. http://dx.doi.org/10.1093/oso/9780198863304.003.0008.

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Abstract EU policy making is frequently accused of being technocratic and too insulated from democratic scrutiny. Technocracy is not a mere practice, but it is underpinned by a specific ideological outlook, centred on the assumption that ‘functional’ thinking and instrumental rationality ought to have primacy over political demands and pressures as well as consensus building and legitimation. Especially within the Commission, the increasing entanglement between the economic profession and policy making has originated over time a new power system which has been dubbed ‘econocracy’: a performati

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"Quantum Entanglement: Concepts and Criteria." In Mathematics of Quantum Computation and Quantum Technology. Chapman and Hall/CRC, 2007. http://dx.doi.org/10.1201/9781584889007-20.

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Keller, Catherine. "“And Truth—So Manifold!”: Transfeminist Entanglements." In Intercarnations. Fordham University Press, 2017. http://dx.doi.org/10.5422/fordham/9780823276455.003.0003.

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This chapter examines the sense of transit, transition, and translation involved in the nonlinear and necessary evolution of feminism under the heading of transfeminism. More specifically, it explores the link between entanglement and difference. As difference multiplies, the tension intensifies. And as gender folds into sexuality, into race, class, and ecology, into materiality, it resists reduction to a mere issue among many. Inspired by a poem of Emily Dickinson, “Truth so manifold,” the chapter hopes to keep feminism from getting either transcended or stuck in a certainty of its own. In di

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"Shifting Times, Converging Futures: Technologies of Writing Beyond Poggio Bracciolini." In Atti. Firenze University Press, 2020. http://dx.doi.org/10.36253/978-88-6453-968-3.09.

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Bracciolini’s contribution to visual materiality, graphical innovation, and the book trade is the driving force in the development of a new philological turn. This essay explores the textual consciousness that marked the passage to scrupulous criteria of editing and writing, which ultimately indicates and emphasizes the historical dimension of hermeneutical tradition. With a powerful impact on readership and authorship, Bracciolini stands behind this groundbreaking entanglement, as we rethink textual transmission and modern scholarship in this digital age.

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Strange, Carolyn. "The Entanglement of Parole and Pardoning in the Progressive Era." In Discretionary Justice. NYU Press, 2016. http://dx.doi.org/10.18574/nyu/9781479899920.003.0007.

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The rise of the expert, emphasized in most histories of progressive penology, was marked in New York; however, this chapter draws on parole board hearing records to reveal the enduring personal nature of discretionary release. Whereas governors dispensed mercy according to traditional criteria (favoring persons of previous good character, the infirm, and prisoners for whom respectable citizens were willing to vouch), comportment and deference mattered in parole hearings. Above all the Parole Board’s discretion hinged on the promise of work (for men) and a stable home (for women). Gubernatorial

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Zanotti, Laura. "The Moral Failure of the Quest for Certainty." In Quantum International Relations. Oxford University Press, 2022. http://dx.doi.org/10.1093/oso/9780197568200.003.0018.

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This chapter explores the relevance of ontological assumptions for justifications of agency and ethics. It critiques Kantian ethics’ reliance on the substantialist ontological imaginary of Newtonian physics. Through critiquing the substantialist, anthropocentric, and colonial implications of that ontology, the chapter argues that Kantian criteria are not only insufficient to make good choices but also conducive making to wrong ones. For instance, they elicit self-appeasement in international interventions. The chapter proposes that an ontology of entanglements opens possibilities to overcome t

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Тези доповідей конференцій з теми "ENTANGLEMENT CRITERION"

Man'ko, Vladimir I., Guillaume Adenier, Andrei Yu Khrennikov, Pekka Lahti, Vladimir I. Man'ko, and Theo M. Nieuwenhuizen. "Probability Instead of Wave Function and Bell Inequalities as Entanglement Criterion." In Quantum Theory. AIP, 2007. http://dx.doi.org/10.1063/1.2827296.

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Law, C. K., and Phoenix S. Y. Poon. "Negativity of Gaussian states in noisy environment: Interpretations and Applications." In Workshop on Entanglement and Quantum Decoherence. Optica Publishing Group, 2008. http://dx.doi.org/10.1364/weqd.2008.edd3.

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We reexamine the interpretation of negativity of a generally mixed two-mode Gaussian state by diagonalizing ρ TA (the partial transposition of density matrix ρ) directly. We show that negativity can be explicitly expressed in terms of an optimal uncertainty product corresponding to the greatest violation of a separability criterion based on positive partial transposition [1], In addition, the explicit form of the eigenvectors of ρ ta provides a way to construct entanglement witness operators [2]. We apply our analysis of negativity to disentanglement dynamics in two physical situations in opti

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Kauffman, Louis H., and Samuel J. Lomonaco, Jr. "Entanglement criteria: quantum and topological." In AeroSense 2003, edited by Eric Donkor, Andrew R. Pirich, and Howard E. Brandt. SPIE, 2003. http://dx.doi.org/10.1117/12.487835.

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Linlin Zheng, H. Matsueda, and H. Ohnishi. "Criteria and degree of multi-particle entanglement." In International Quantum Electronics Conference, 2005. IEEE, 2005. http://dx.doi.org/10.1109/iqec.2005.1561080.

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Mohd, Siti Munirah, Bahari Idrus, and Muriati Mukhtar. "Separability criteria and method of measurement for entanglement." In PROCEEDINGS OF THE 3RD INTERNATIONAL CONFERENCE ON MATHEMATICAL SCIENCES. AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4882495.

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Bowen, W. P., R. Schnabel, N. Treps, H. A. Bachor, P. K. Lam, and T. C. Raplh. "An experimental investigation of criteria for continuous variable entanglement." In 2003 European Quantum Electronics Conference. EQEC 2003 (IEEE Cat No.03TH8665). IEEE, 2003. http://dx.doi.org/10.1109/eqec.2003.1314210.

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Bowen, W. P., R. Schnabel, N. Treps, H. A. Bachor, P. K. Lam, and T. C. Ralph. "An experimental investigation of criteria for continuous variable entanglement." In Quantum Electronics and Laser Science (QELS). Postconference Digest. IEEE, 2003. http://dx.doi.org/10.1109/qels.2003.237792.

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Tóth, Géza, Christian Knapp, Otfried Gühne, Hans J. Briegel, and Alexander Lvovsky. "Generalized spin squeezing criteria: Entanglement detection with collective measurements." In QUANTUM COMMUNICATION, MEASUREMENT AND COMPUTING (QCMC): Ninth International Conference on QCMC. AIP, 2009. http://dx.doi.org/10.1063/1.3131365.

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Spagnolo, Nicolò, Chiara Vitelli, Fabio Sciarrino, and Francesco De Martini. "Entanglement test in micro-macroscopic photon system: criteria and assumptions." In ADVANCES IN QUANTUM THEORY: Proceedings of the International Conference on Advances in Quantum Theory. AIP, 2011. http://dx.doi.org/10.1063/1.3567445.

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