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8 papers · 2 filters
Continuous-variable entanglement distillation over a pure loss channel with multiple quantum scissors
Kaushik P. Seshadreesan, Hari Krovi, Saikat Guha
Entanglement distillation is a key primitive for distributing high-quality entanglement between remote locations. Probabilistic noiseless linear amplification based on the quantum…
Continuous-variable quantum repeater based on quantum scissors and mode multiplexing
Kaushik P. Seshadreesan, Hari Krovi, Saikat Guha
Quantum repeaters are indispensable for high-rate, long-distance quantum communications. The vision of a future quantum internet strongly hinges on realizing quantum repeaters in p…
High-fidelity dissipative engineering using parametric interactions
E. Doucet, F. Reiter, L. Ranzani +1
Established methods for dissipative state preparation typically rely on resolving resonances, limiting the target state fidelity due to competition between the stabilization mechan…
Loss asymmetries in quantum travelling wave parametric amplifiers
M. Houde, L. C. G. Govia, A. A. Clerk
We study theoretically how loss impacts the amplification and squeezing performance of a generic quantum travelling wave parametric amplifier. Unlike previous studies, we analyze h…
Kinetic Inductance Traveling Wave Amplifiers For Multiplexed Qubit Readout
Leonardo Ranzani, Mustafa Bal, Kin Chung Fong +7
We describe a kinetic inductance traveling-wave (KIT) amplifier suitable for superconducting quantum information measurements and characterize its wideband scattering and noise pro…
An efficient high dimensional quantum Schur transform
Hari Krovi
The Schur transform is a unitary operator that block diagonalizes the action of the symmetric and unitary groups on an fold tensor product of a vector space …