Distributed Qutrit—Qutrit Entanglement through Laser-Driven Resonant Interaction

Abstract

We propose to deterministically realize the qutrit-qutrit maximal entanglement for two atoms held in separate cavities coupled by an optical resonator. We study such a system in the resonant regime and show that the laser-driven resonant dynamics allow for the fast and robust creation of qutrit-qutrit entanglement.

Enhancement of multiatom non-classical correlations and quantum state transfer in atom-cavity-fiber system*

“…According to Eqs. ( 8), (25), and (26), we can derive the fidelity F(t) of the entangled state transfer from atomic traps 1, 3 to atomic traps 2, 4 as…”

“…[15][16][17] In particular, during the past years, much attention has been paid to the possibility of quantum information processing realized via the atom-cavity-fiber systems, which can be used to implement quantum communi-cation and engineer quantum logical gates. [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34] For example, Bose et al proposed a scheme to realize the effective quantum gates between two atoms in distant cavities coupled by optical fibers. [19] Yang et al presented two schemes for realizing quantum logic gates between two atoms trapped in two separate cavities connected by an optical fiber.…”

“…[22,23] In Refs. [24,25], Wu et al investigated two schemes for realizing and engineering the qutrit-qutrit maximal entanglement of two atoms held in separate cavities coupled by an optical resonator. In Ref.…”

Efficient entanglement concentration for arbitrary less-entangled NOON state assisted by single photons

“…Entanglement plays a significant role in the quantum information field. For example, quantum teleportation, [1,2] quantum densecoding, [3] quantum secret sharing, [4] quantum computation, [5][6][7] communication, [8][9][10] protocols [11][12][13][14][15][16][17][18][19][20][21][22] all require entanglement to set up the quantum entanglement channels. Recently, a special quantum state, which is the so-called NOON state, has attracted much attention.…”

Determining Separability with Entanglement of Formation and Entanglement Sudden Death

“…The experiments on qutrit-qutrit entanglement are recently studied. [13,14] Bennett et al [15] have computed that the state complementary to the Tiles UPB has a bound EoF of 0.213726 ebits and the Pyramid UPB has an EoF of 0.232635 ebits. We use these as starting points of calculations.…”