Quantum computation and entangled-state generation through adiabatic evolution in two distant cavities

Song, Jie; Xia, Yan; Song, He-Shan; Guo, Jin‐Liang; Nie, Jing

doi:10.1209/0295-5075/80/60001

Cited by 58 publications

(33 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As the common mirror is 7) are plotted as solid (blue) curves, the approximate analytical solutions given by Eqs. (11) and (12) are plotted as short dashed (black) curves, and the localized solutions are plotted as long dashed (red) curves. The difference between the exact numerical solutions and the approximate analytical ones is hard to discern.…”

Section: Solutions Of Maxwell's Wave Equationmentioning

confidence: 99%

Adiabatic transfer of light in a double cavity and the optical Landau-Zener problem

et al. 2011

View full text Add to dashboard Cite

We analyze the evolution of an electromagnetic field inside a double cavity when the difference in length between the two cavities is changed, e.g., by translating the common mirror. We find that this allows photons to be moved deterministically from one cavity to the other. We are able to obtain the conditions for adiabatic transfer by first mapping the Maxwell wave equation for the electric field onto a Schrödinger-like wave equation and then using the Landau-Zener result for the transition probability at an avoided crossing. Our analysis reveals that this mapping only rigorously holds when the two cavities are weakly coupled (i.e., in the regime of a highly reflective common mirror) and that, generally speaking, care is required when attempting a Hamiltonian description of cavity electrodynamics with time-dependent boundary conditions.

show abstract

Section: Solutions Of Maxwell's Wave Equationmentioning

confidence: 99%

Adiabatic transfer of light in a double cavity and the optical Landau-Zener problem

et al. 2011

View full text Add to dashboard Cite

show abstract

“…quite a large number of previous schemes [65][66][67][68][69][70][71][72], because they are simple and suitable to operate photon states. For example, they can be used to entangle photons [66,71,72].…”

Section: Discussion Of Feasibilitymentioning

confidence: 99%

Efficient spin Bell states and Greenberger–Horne–Zeilinger states analysis in the quantum dot–microcavity coupled system

Kang

Yan

2015

Appl. Phys. B

Self Cite

View full text Add to dashboard Cite

motivated an intensive research in the generation and the manipulation of entangled states.Typical two particles bipartite entangled states are Bell states [19], and they can be used in a large quantity of quantum communication schemes. So, the complete and determinate analysis of the Bell states is a crucial step in QIP. On the other hand, multiparticle systems also attract more and more attentions of researchers, referred to as Greenberger-Horne-Zeilinger (GHZ) states [20], W states [21], and cluster states [22], etc. Especially, the GHZ states [20], which can provide possibilities to test quantum mechanics against local hidden theory without inequality [19], is one of the most important resource in QIP. Till now, due to the large information capacity, great interest has arisen regarding the significant role of GHZ states in the foundations of quantum mechanics measurement theory and quantum communication [23][24][25][26][27][28][29]. Contrary to bipartite entangled states, GHZ states exhibit a special kind of entanglement between N ≥ 3 parties, providing a possibility to test quantum nonlocality in a one-shot manner. So, of common interest is the problem of how to realize the GHZ states analysis using current technologies.We all know that an analyzer that can completely and determinately distinguish all of the Bell states and the GHZ states without destroying quantum qubits is a very powerful tool. Thus, lots of Bell states and GreenbergerHorne-Zeilinger states analysis schemes [30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46] have been proposed for different systems with several methods. For example, Walborn et al. [36] have proposed a simple scheme for complete Bell states measurement of photons using hyperentangled states. Houwelingen et al. [41] have proposed a scheme, which can distinguish two of the eight maximally entangled polarized photon GHZ states. Sheng et al. have proposed a Bell state analysis scheme [45] with quantum nondemolition detectorsAbstract We propose a scheme for spin Bell states and GHZ states analysis with quantum dots inside double-sided optical microcavities. The proposed setup involves simple linear optical elements, single polarized photon, and the conventional photon detectors that only distinguish the vacuum and nonvacuum Fock number states. This makes the protocol more realizable in experiments. Numerical simulation shows that the high fidelities can be realized when the side leakage and cavity loss are low, which is feasible in the weak-coupling regime. With all the advantages above, our scheme could be useful in quantum communication processing.

show abstract

“…Therefore, the implementations of different kinds of logic gates have been proposed by numerous protocols [3,[10][11][12][13][14][15][16][17][18]. For example, Zou et al [11] have proposed a linear optical protocol for direct realization of a nondestructive N -qubit controlled phase gate without resorting to a sequence of single-and two-qubit gates; Song et al [12] have proposed a protocol * Corresponding author. Email: xia-208@163.com to implement a controlled phase gate for quantum computation; Fiurasek [14] has also designed linear-optics multiqubit quantum logic gates.…”

Section: Introductionmentioning

confidence: 99%

Efficient and flexible protocol for implementing two-qubit controlled phase gates with cross-Kerr nonlinearity

Kang

Yan

2014

Journal of Modern Optics

Self Cite

View full text Add to dashboard Cite

The controlled phase gate is one of the most important logic gates in the quantum computation field. In this paper, we proposed a protocol for implementing the two-qubit controlled phase gates with the help of cross-Kerr nonlinearity, optical elements and the conventional photon detectors, which are feasible with existing experimental technology. The protocol also can be applied to implement the controlled phase gates of many different atomic and photonic degrees of freedom with successful probability of 100%, that is, our protocol is efficient and flexible.

show abstract

Quantum computation and entangled-state generation through adiabatic evolution in two distant cavities

Cited by 58 publications

References 32 publications

Adiabatic transfer of light in a double cavity and the optical Landau-Zener problem

Adiabatic transfer of light in a double cavity and the optical Landau-Zener problem

Efficient spin Bell states and Greenberger–Horne–Zeilinger states analysis in the quantum dot–microcavity coupled system

Efficient and flexible protocol for implementing two-qubit controlled phase gates with cross-Kerr nonlinearity

Contact Info

Product

Resources

About