Tomographic measurements on superconducting qubit states
arXiv:quant-ph/0407197 · doi:10.1103/PhysRevB.72.014547
Abstract
We propose an approach to reconstruct any superconducting charge qubit state by using quantum state tomography. This procedure requires a series of measurements on a large enough number of identically prepared copies of the quantum system. The experimental feasibility of this procedure is explained and the time scales for different quantum operations are estimated according to experimentally accessible parameters. Based on the state tomography, we also investigate the possibility of the process tomography.
12 pages, 4 figures
References in corpus (50)
- Quantum state engineering with Josephson-junction devices
- Coherent control of macroscopic quantum states in a single-Cooper-pair box
- On the Measurement of Qubits
- Manipulating the Quantum State of an Electrical Circuit
- Coherent Quantum Dynamics of a Superconducting Flux Qubit
- Two-Bit Gates are Universal for Quantum Computation
- Experimental Quantum State Tomography of Optical Fields and Ultrafast Statistical Sampling
- Prescription for experimental determination of the dynamics of a quantum black box
- Unknown Quantum States and Operations, a Bayesian View
- Quantum oscillations in two coupled charge qubits
- Josephson-Junction Qubits with Controlled Couplings
- Quantum state reconstruction of the single-photon Fock state
- Demonstration of conditional gate operation using superconducting charge qubits
- Quantum state estimation
- Non-maximally entangled states: production, characterization and utilization
- Quantum process tomography of a controlled-NOT gate
- Quiet SDS Josephson Junctions for Quantum Computing
- Charge echo in a Cooper-pair box
- Tomography of Quantum Operations
- Spectroscopy on two coupled flux qubits
- Quantum Tomography
- Minimal qubit tomography
- Scalable quantum computing with Josephson charge qubits
- Quantum Process Tomography of the Quantum Fourier Transform
- Variable electrostatic transformer: controllable coupling of two charge qubits
- Evidence for entangled states of two coupled flux qubits
- NMR-like control of a quantum bit superconducting circuit
- Controllable manipulation and entanglement of macroscopic quantum states in coupled charge qubits
- Diagnosis, prescription and prognosis of a Bell-state filter by quantum process tomography
- Optical realization of optimal unambiguous discrimination for pure and mixed quantum states
- Homodyne tomography characterization and nonlocality of a dual-mode optical qubit
- Reducing Constraints on Quantum Computer Design by Encoded Selective Recoupling
- Experimental demonstration of quantum state tomography and qubit-qubit interactions for rare-earth-ion based solid state qubits
- Single-shot measurement of the Josephson charge qubit
- Quantum Time Evolution in Terms of Nonredundant Expectation Values
- Maximum-likelihood reconstruction of CP maps
- Decoherence-Free Subspaces for Multiple-Qubit Errors: (II) Universal, Fault-Tolerant Quantum Computation
- An NMR Analog of the Quantum Disentanglement Eraser
- Measuring the Quantum State of a Large Angular Momentum
- Quantum computation with Josephson-qubits by using a current-biased information bus
- Spectroscopy of Three-Particle Entanglement in a Macroscopic Superconducting Circuit
- Reconstructing the density operator via simple projectors
- Efficient Quantum State Tomography for Quantum Information Processing using a two-dimensional Fourier Transform Technique
- Reconstruction of quantum states of spin systems via the Jaynes principle of maximum entropy
- A Study of Quantum Error Correction by Geometric Algebra and Liquid-State NMR Spectroscopy
- Orthogonality relations in Quantum Tomography
- Quantum tomography for solid state qubits
- Fetching marked items from an unsorted database in NMR ensemble computing
- Coupling Josephson qubits via a current-biased information bus
- Errors due to Finite Rise/fall Times of Pulses in Superconducting Charge Qubits
Cited by in corpus (42)
- Atomic physics and quantum optics using superconducting circuits
- Microwave photonics with superconducting quantum circuits
- Quantum CNOT Gate for Spins in Silicon
- Uncollapsing of a quantum state in a superconducting phase qubit
- State tomography of capacitively shunted phase qubits with high fidelity
- Two-Qubit State Tomography using a Joint Dispersive Read-Out
- Controllable coupling between flux qubits
- Full reconstruction of a 14-qubit state within four hours
- Quantum transducers: Integrating Transmission Lines and Nanomechanical Resonators via Charge Qubits
- Employing Circuit QED to Measure Nonequilibrium Work Fluctuations
- Tomography via Correlation of Noisy Measurement Records
- Superconducting qubits can be coupled and addressed as trapped ions
- Quantum state tomography with quantum shotnoise
- Macroscopic Einstein-Podolsky-Rosen pairs in superconducting circuits
- Feedback Control of Rabi Oscillations in Circuit QED
- Observing pure effects of counter-rotating terms without ultrastrong coupling: A single photon can simultaneously excite two qubits
- Measurement-based quantum phase estimation algorithm for finding eigenvalues of non-unitary matrices
- Two-qubit decoherence mechanisms revealed via quantum process tomography
- Maximally entangling tripartite protocols for Josephson phase qubits
- Quantum state tomography of large nuclear spins in a semiconductor quantum well: Optimal robustness against errors as quantified by condition numbers
- On the generation of multipartite entangled states in Josephson architectures
- Macroscopic Greenberger-Horne-Zeilinger and W States in Flux Qubits
- Spectral Analysis and Identification of Noises in Quantum Systems
- Fast generation of multiparticle entangled state for flux qubits in a circle array of transmission line resonators with tunable coupling
- Crossover of phase qubit dynamics in presence of negative-result weak measurement
- Quantum State Tomography with Conditional Generative Adversarial Networks
- Efficient tomography of quantum-optical Gaussian processes probed with a few coherent states
- Readout error mitigated quantum state tomography tested on superconducting qubits
- Simulating long-distance entanglement in quantum spin chains by superconducting flux qubits
- Classification and reconstruction of optical quantum states with deep neural networks
- Cross-Platform Verification in Quantum Networks
- Optimal choice of state tomography quorum formed by projection operators
- High efficiency tomographic reconstruction of quantum states by quantum nondemolition measurements
- Parity-dependent state transfer for direct entanglement generation
- Gradient-descent methods for fast quantum state tomography
- Noise-spectroscopy of multiqubit systems: Determining all their parameters by applying an external classical noise
- Diffusion and transfer of entanglement in an array of inductively coupled flux qubits
- Implementing Genuine Multi-Qubit Entanglement of Two-Level-System Inside a Superconducting Phase Qubit
- Delayed creation of entanglement in superconducting qubits interacting with a microwave field
- Quantum Faraday Effect in Double-Dot Aharonov-Bohm Ring
- Local Geometric Phase and Quantum State Tomography in a Superconducting Qubit
- Selective and efficient quantum state tomography for multi-qubit systems