Detecting entanglement by the mean value of spin on a quantum computer
arXiv:2003.01011 · doi:10.1016/j.physleta.2020.126579
Abstract
We implement a protocol to determine the degree of entanglement between a qubit and the rest of the system on a quantum computer. The protocol is based on results obtained in paper [Frydryszak et al. (2017)]. This protocol is tested on a 5-qubit superconducting quantum processor called ibmq-ourense provided by the IBM company. We determine the values of entanglement of the Schrödinger cat and the Werner states prepared on this device and compare them with the theoretical ones. In addition, a protocol for determining the entanglement of rank-2 mixed states is proposed. We apply this protocol to the mixed state which consists of two Bell states prepared on the ibmq-ourense quantum device.
arXiv comment6 pages, 9 figures
References in corpus (10)
- Quantum entanglement
- 14-qubit entanglement: creation and coherence
- Experimental ten-photon entanglement
- 10-qubit entanglement and parallel logic operations with a superconducting circuit
- 18-qubit entanglement with photon's three degrees of freedom
- 12-photon entanglement and scalable scattershot boson sampling with optimal entangled-photon pairs from parametric down-conversion
- Genuine 12-qubit entanglement on a superconducting quantum processor
- 16-qubit IBM universal quantum computer can be fully entangled
- Entanglement in a 20-Qubit Superconducting Quantum Computer
- Quantifying geometric measure of entanglement by mean value of spin and spin correlations for pure and mixed states
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