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J. Semicond. > 2019, Volume 40?>?Issue 7?> 070404

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Single photon-chiral phonon entanglement in monolayer WSe₂

Jun Zhang^{1, 2,}

+ Author Affiliations + Find other works by these authors

• 1. State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaState Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
• 2. Beijing Academy of Quantum Information Science, Beijing 100193, ChinaBeijing Academy of Quantum Information Science, Beijing 100193, China

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• Jun Zhang Email: zhangjwill@semi.ac.cn.

• Jun Zhang

 Corresponding author: Jun Zhang, Email: zhangjwill@semi.ac.cn

DOI: 10.1088/1674-4926/40/7/070404

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[1]	Aspect A, Grangier P, Roger G. Experimental realization of Einstein-Podolsky-Rosen-Bohm Gedanken experiment — A new violation of Bell inequalitites. Phys Rev Lett, 1982, 49, 91 doi: 10.1103/PhysRevLett.49.91
[2]	Blatt R, Wineland D. Entangled states of trapped atomic ions. Nature, 2008, 453, 1008 doi: 10.1038/nature07125
[3]	Neumann P, Mizuochi N, Rempp F, et al. Multipartite entanglement among single spins in diamond. Science, 2008, 320, 1326 doi: 10.1126/science.1157233
[4]	Shulman M D, Dial O E, Harvey S P, et al. Demonstration of entanglement of electrostatically coupled singlet-triplet qubits. Science, 2012, 336, 202 doi: 10.1126/science.1217692
[5]	Lee K C, Sprague M R, Sussman B J, et al. Entangling macroscopic diamonds at room temperature. Science, 2011, 334, 1253 doi: 10.1126/science.1211914
[6]	Chen X, Lu X, Dubey S, et al. Entanglement of single-photons and chiral phonons in atomically thin WSe2. Nat Phys, 2018, 15, 221 doi: 10.1038/s41567-018-0366-7

Fig. 1.  Phonon-photon interaction in monolayer WSe₂. (a) Optical image of the monolayer WSe₂ FET device. (b) Schematic of phonon-photon entanglement. The circularly polarized states (σ–/σ+) with angular momentum of l = –1/+1 are degenerate in WSe₂. The σ–(σ+) photon state can only couple with l = +1 (–1) phonon and scatter to σ+(σ–) state due to conservation of angular momentum. The indistinguishability of the two paths leads to phonon-photon entanglement. (c, d) Polarization of QDs and their phonon replicas. D3a doublets are linearly polarized and orthogonal to each other, as expected from a localized neutral exciton. D3b doublets, the phonon replica of D3a, do not show any dependence on collection polarization, indicating that D3b are unpolarized. The lost of polarization information from parent peaks to phonon replicas is a result of phonon–photon entanglement.

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[1]	Aspect A, Grangier P, Roger G. Experimental realization of Einstein-Podolsky-Rosen-Bohm Gedanken experiment — A new violation of Bell inequalitites. Phys Rev Lett, 1982, 49, 91 doi: 10.1103/PhysRevLett.49.91
[2]	Blatt R, Wineland D. Entangled states of trapped atomic ions. Nature, 2008, 453, 1008 doi: 10.1038/nature07125
[3]	Neumann P, Mizuochi N, Rempp F, et al. Multipartite entanglement among single spins in diamond. Science, 2008, 320, 1326 doi: 10.1126/science.1157233
[4]	Shulman M D, Dial O E, Harvey S P, et al. Demonstration of entanglement of electrostatically coupled singlet-triplet qubits. Science, 2012, 336, 202 doi: 10.1126/science.1217692
[5]	Lee K C, Sprague M R, Sussman B J, et al. Entangling macroscopic diamonds at room temperature. Science, 2011, 334, 1253 doi: 10.1126/science.1211914
[6]	Chen X, Lu X, Dubey S, et al. Entanglement of single-photons and chiral phonons in atomically thin WSe2. Nat Phys, 2018, 15, 221 doi: 10.1038/s41567-018-0366-7

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Received: Revised: Online: Accepted Manuscript: 27 June 2019Uncorrected proof: 27 June 2019Published: 05 July 2019

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Article Navigation >  Journal of Semiconductors  > 2019  >  40(7): 070404

Jun Zhang. Single photon-chiral phonon entanglement in monolayer WSe2[J]. Journal of Semiconductors, 2019, 40(7): 070404. doi: 10.1088/1674-4926/40/7/070404 ****J Zhang, Single photon-chiral phonon entanglement in monolayer WSe2[J]. J. Semicond., 2019, 40(7): 070404. doi: 10.1088/1674-4926/40/7/070404.

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Jun Zhang. Single photon-chiral phonon entanglement in monolayer WSe2[J]. Journal of Semiconductors, 2019, 40(7): 070404. doi: 10.1088/1674-4926/40/7/070404 **** J Zhang, Single photon-chiral phonon entanglement in monolayer WSe2[J]. J. Semicond., 2019, 40(7): 070404. doi: 10.1088/1674-4926/40/7/070404.

Jun Zhang. Single photon-chiral phonon entanglement in monolayer WSe2[J]. Journal of Semiconductors, 2019, 40(7): 070404. doi: 10.1088/1674-4926/40/7/070404 ****J Zhang, Single photon-chiral phonon entanglement in monolayer WSe2[J]. J. Semicond., 2019, 40(7): 070404. doi: 10.1088/1674-4926/40/7/070404.

Citation:

Jun Zhang. Single photon-chiral phonon entanglement in monolayer WSe2[J]. Journal of Semiconductors, 2019, 40(7): 070404. doi: 10.1088/1674-4926/40/7/070404 **** J Zhang, Single photon-chiral phonon entanglement in monolayer WSe2[J]. J. Semicond., 2019, 40(7): 070404. doi: 10.1088/1674-4926/40/7/070404.

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Single photon-chiral phonon entanglement in monolayer WSe₂

DOI: 10.1088/1674-4926/40/7/070404

• Jun Zhang^1,2, 

• 1.

  State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China

• 2.

  Beijing Academy of Quantum Information Science, Beijing 100193, China

More Information

• Jun Zhang：Email: zhangjwill@semi.ac.cn
• Corresponding author: Email: zhangjwill@semi.ac.cn
• Published Date: 2019-07-01

Abstract
FullText(HTML)
References(6)

• References

  [1]	Aspect A, Grangier P, Roger G. Experimental realization of Einstein-Podolsky-Rosen-Bohm Gedanken experiment — A new violation of Bell inequalitites. Phys Rev Lett, 1982, 49, 91 doi: 10.1103/PhysRevLett.49.91
  [2]	Blatt R, Wineland D. Entangled states of trapped atomic ions. Nature, 2008, 453, 1008 doi: 10.1038/nature07125
  [3]	Neumann P, Mizuochi N, Rempp F, et al. Multipartite entanglement among single spins in diamond. Science, 2008, 320, 1326 doi: 10.1126/science.1157233
  [4]	Shulman M D, Dial O E, Harvey S P, et al. Demonstration of entanglement of electrostatically coupled singlet-triplet qubits. Science, 2012, 336, 202 doi: 10.1126/science.1217692
  [5]	Lee K C, Sprague M R, Sussman B J, et al. Entangling macroscopic diamonds at room temperature. Science, 2011, 334, 1253 doi: 10.1126/science.1211914
  [6]	Chen X, Lu X, Dubey S, et al. Entanglement of single-photons and chiral phonons in atomically thin WSe2. Nat Phys, 2018, 15, 221 doi: 10.1038/s41567-018-0366-7

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• Fig. 1. Phonon-photon interaction in monolayer WSe₂. (a) Optical image of the monolayer WSe₂ FET device. (b) Schematic of phonon-photon entanglement. The circularly polarized states (σ–/σ+) with angular momentum of l = –1/+1 are degenerate in WSe₂. The σ–(σ+) photon state can only couple with l = +1 (–1) phonon and scatter to σ+(σ–) state due to conservation of angular momentum. The indistinguishability of the two paths leads to phonon-photon entanglement. (c, d) Polarization of QDs and their phonon replicas. D3a doublets are linearly polarized and orthogonal to each other, as expected from a localized neutral exciton. D3b doublets, the phonon replica of D3a, do not show any dependence on collection polarization, indicating that D3b are unpolarized. The lost of polarization information from parent peaks to phonon replicas is a result of phonon–photon entanglement.