The two-qubit amplitude damping channel: characterization using quantum stabilizer codes
arXiv:1511.03368 · doi:10.1016/j.aop.2016.06.024
Abstract
A protocol based on quantum error correction based characterization of quantum dynamics (QECCD) is developed for quantum process tomography on a two-qubit system interacting dissipatively with a vacuum bath. The method uses a 5-qubit quantum error correcting code that corrects arbitrary errors on the first two qubits, and also saturates the quantum Hamming bound. The dissipative interaction with a vacuum bath allows for both correlated and independent noise on the two-qubit system. We study the dependence of the degree of the correlation of the noise on evolution time and inter-qubit separation.
arXiv comment13 pages, 5 figures
References in corpus (26)
- Introducing Quantum Discord
- Classical, quantum and total correlations
- Logic gates at the surface code threshold: Superconducting qubits poised for fault-tolerant quantum computing
- Necessary and sufficient condition for non-zero quantum discord
- State preservation by repetitive error detection in a superconducting quantum circuit
- Stabilizer Codes and Quantum Error Correction
- Maintaining coherence in Quantum Computers
- Detecting arbitrary quantum errors via stabilizer measurements on a sublattice of the surface code
- Entangled states and collective nonclassical effects in two-atom systems
- Experimental Quantum Computations on a Topologically Encoded Qubit
- Ancilla-assisted quantum process tomography
- Tomography of Quantum Operations
- Symmetrised Characterisation of Noisy Quantum Processes
- Quantum Error Correction
- Direct Characterization of Quantum Dynamics
- A Robust Method for Estimating the Lindblad Operators of a Dissipative Quantum Process from Measurements of the Density Operator at Multiple Time Points
- The double-degenerate, super-Chandrasekhar nucleus of the planetary nebula Henize 2-428
- Experimentally scalable protocol for identification of correctable codes
- Direct Characterization of Quantum Dynamics: General Theory
- Dynamics of entanglement in Two-Qubit Open System Interacting with a Squeezed Thermal Bath via Dissipative interaction
- Characterization of quantum dynamics using quantum error correction
- Quantum error correction with degenerate codes for correlated noise
- Entanglement Dynamics in Two-Qubit Open System Interacting with a Squeezed Thermal Bath via Quantum Nondemolition interaction
- Efficient Quantum Error Correction for Fully Correlated Noise
- Quantum code for quantum error characterization
- Direct Characterization of Quantum Dynamics with Noisy Ancilla