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Analysis of PhotonMediated Entanglement between Distinguishable Matter Qubits
Ari Dyckovsky
Loudoun County Academy of Science, Sterling, VA

Longdistance entanglement may be utilized as a resource for teleportation of quantum states, efficient factorization of large numbers, and quantum simulations of manybody systems. I theoretically evaluated establishing remote entanglement between distinguishable matter qubits through interference and detection of two emitted photons. The fidelity of the entanglement operation was analyzed as a function of the temporal and frequency modematching between the photons emitted from each quantum memory. With a general analysis, I defined limits on the absolute magnitudes of temporal and frequency modemismatches in order to maintain fidelities greater than 99% with twophoton detection efficiencies greater than 90%. I applied the analysis to several selected systems of quantum memories. Results indicated that high fidelities may be achieved in each system using current experimental techniques, while maintaining acceptable rates of entanglement. Thus, it might be possible to use twophotonmediated entanglement operations between distinguishable quantum memories to establish a network for quantum communication and distributed quantum computation.
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