CZ vs Beam Splitter: errors of entangled operations
arXiv:2103.11009 · doi:10.1103/PhysRevA.103.062407
Abstract
Using the quantum teleportation in continuous variables as a test scheme, we compare two entangled transformations - mixing of signals on a beamsplitter and by the CZ operation. We evaluate these transformations in terms of the errors added to teleported oscillators. We have shown that the CZ operation leads to the lower error of teleportation. This error can be further reduced by choosing appropriate weight coefficients for the CZ transforms. We have compared the errors of the theoretical CZ scheme and its practical implementation in the optical design. Although the CZ optical scheme adds intrinsic noise to the overall transformation, it is nevertheless possible to specify the parameters which provides a gain in comparison with the traditional teleportation protocol.
arXiv comment9 pages, 5 figures
References in corpus (21)
- Experimental quantum teleportation
- Quantum information with continuous variables
- Quantum computation over continuous variables
- Teleportation of Quantum States
- Universal Quantum Computation with Continuous-Variable Cluster States
- Parallel implementation of high-fidelity multi-qubit gates with neutral atoms
- Continuous-variable teleportation improvement by photon subtraction via conditional measurement
- Cluster-state quantum computation
- Cluster States for Continuous-Variable Multipartite Entanglement
- Building Gaussian Cluster States by Linear Optics
- All-optical quantum information processing using Rydberg gates
- Demonstration of a quantum nondemolition sum gate
- Continuous-variable geometric phase and its manipulation for quantum computation in a superconducting circuit
- Experimental realization of a fast controlled-Z gate via a shortcut-to-adiabaticity
- Noise analysis of single-qumode Gaussian operations using continuous-variable cluster states
- Quasideterministic realization of a universal quantum gate in a single scattering process
- Architecture and noise analysis of continuous-variable quantum gates using two-dimensional cluster states
- Flexible quantum circuits using scalable continuous-variable cluster states
- Correcting finite squeezing errors in continuous-variable cluster states
- Continuous-variable controlled-Z gate using an atomic ensemble
- Finding the optimal cluster state configuration. Minimization of one-way quantum computation errors
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- Generation of squeezed Fock states by measurement
- Error of an arbitrary single-mode Gaussian transformation on a weighted cluster state using a cubic phase gate
- Estimation of the set of states obtained in particle number measurement schemes