Generation of N-cavity field W state in atom-cavity-fiber system

Abstract

Abstract:

A robust scheme was proposed for generating maximally W entangled states of cavity field in atom-cavity-fiber system. The scheme requires that the coupling coefficient between the cavity and the atom is much smaller than the Rabi frequency. The atomic spontaneous emission and the fiber modes decay are suppressed efficiently via employing adiabatic evolution along dark states. So it is insensitive to the small fluctuation of some parameters. It is also convenient only by adjusting atom-field couplings appropriately to generate W state deterministically. This system can be considered as an ingredient of the quantum network.

Key words: quantum optics, W state, dark state, atom-cavity-fiber system

CLC Number:

O431.2

XIONG Wei, YE Liu . Generation of N-cavity field W state in atom-cavity-fiber system[J]. J4, 2012, 29(2): 196-203.

References

[1] Ekert A K, Quantum cryptography based on Bell’s theoremPhys. Rev. Lett. 67, 661(1991).
[2] Bennett C H, Wiesner S J, Communication via one- and two-particle operators on Einstein-Podolsky-Rosen states Phys. Rev. Lett. 69, 2881(1992).
[3] Bennett C H, et al., Teleporting an unknown quantum state via dual classical and Einstein-Podolsky-Rosen channels Phys. Rev. Lett. 70,1895(1993).
[4] Raussendorf R, Briegel H J, A One-Way Quantum Computer Phy. Rev. Lett. 86, 5188(2001).
[5] Nielsen M A, Cluster-state quantum computation Rep. Math. Phys. 57, 147(2006).
[6] Bruss D, et al., Optimal universal and state-dependent quantum cloning. Phys. Rev. A. 57. 2368(1998).
[7] Murao M, et al., Quantum telecloning and multiparticle entanglement. Phys. Rev. A. 59, 156(1999).
[8] Greenberger D M, et al., Bell’s theorem without inequalities. Am. J. Phys. 58, 1131(1990).
[9] Dür W, Vidal G, Cirac J I, Three qubits can be entangled in two inequivalent ways. Phys. Rev. A. 62, 062314(2000).
[10] Briegel H J, Raussendorf R, Persistent Entanglement in Arrays of Interacting Particles.Phys. Rev. Lett. 86, 910(2001).
[11] Wang H F, Zhang S, Linear optical generation of multipartite entanglement with conventional photon detectors. Phys. Rev. A. 79, 042336(2009).
[12] Deng Z J, Feng M, Gao K L, Simple scheme for generating an n-qubit W state in cavity QED. Phys.Rev.A.73, 014302(2006).
[13] Zheng S B, Generation of entangled states of multiple trapped ions in thermal motion. Phys. Rev. A. 70, 045804(2004).
[14] van Enk S J, Quantum communication with dark photons. Phys. Rev. A. 59, 2659(1999).
[15] Clark S, Unconditional Preparation of Entanglement between Atoms in Cascaded Optical Cavities. Phys. Rev. Lett. 91, 177901(2003).
[16] Bose S, Proposal for Teleportation of an Atomic State via Cavity Decay.Phys. Rev. Lett. 83, 5158(1999).
[17] Duan L M, Kimble H J, Efficient Engineering of Multiatom Entanglement through Single-Photon Detections. Phys. Rev. Lett. 90, 253601(2003).
[18] Pellizzari T, Quantum Networking with Optical Fibres.Phys. Rev. Lett. 79, 5242 (1997).
[19] Ye S Y, Zhong Z R, Zheng S B, Deterministic generation of three-dimensional entanglement for two atoms separately trapped in two optical cavities. Phys. Rev. A. 77, 014303(2008).
[20] Chen L B, et al., Generation of entanglement via adiabatic passage. Phys. Rev. A. 76, 062304(2007).
[21] Song J, Xia Y, Song H S , Entangled state generation via adiabatic passage in two distant cavities. J. Phys. B. At. Mod. Opt. Phys. 40, 4503(2007).
[22] Li Y L, Fang M F, Generation of entanglement in the atom—cavity—fibre system via adiabatic passage. Chin. Phys. B. 19, 030311(2010).
[23] Yin Z Q, Li F L, Multiatom and resonant interaction scheme for quantum state transfer and logical gates between two remote cavities via an optical fiber. Phys. Rev. A. 75, 012324(2007).
[24] Serafini A, Mancini S, Bose S, Distributed Quantum Computation via Optical Fibers. Phys. Rev. Lett. 96, 010503(2006).
[25] Zheng S B, Generation of Greenberger-Horne-Zeilinger states for multiple atoms trapped in separated cavities. The European Physical Journal D. 54, 719-722(2009).
[26]Spillane S M, et al., Ideality in a Fiber-Taper-Coupled Microresonator System for Application to Cavity Quantum Electrodynamics. Phys. Rev. Lett. 91, 043902(2003).
[27]Boozer A D, et al. Cooling to the Ground State of Axial Motion for One Atom Strongly Coupled to an Optical Cavity. Phys. Rev. Lett. 97, 083602(2006).
[28] Bergmann K, Theuer H, Shore B W, Coherent population transfer among quantum states of atoms and molecules.Rev. Mod. Phys.70, 1003 (1998).
[29] Meystre P, Cavity quantum optics and the quantum measurement process. in Progress in Optics Vol. 30, edited by E. Wolf(Elsevier Science, New York, 1992).
[30] Kwiat P G, et al, New High-Intensity Source of Polarization-Entangled Photon Pairs. Phys. Rev. Lett. 75, 4337 (1995). [31] Walther P , et al., Experimental one-way quantum computing. Nature 434, 169 (2005)