Generation of quantum entangled states of multiple groups of qubits distributed in multiple cavities
arXiv:2003.14170 · doi:10.1103/PhysRevA.101.012337
Abstract
Provided that cavities are initially in a Greenberger-Horne-Zeilinger (GHZ) entangled state, we show that GHZ states of N-group qubits distributed in N cavities can be created via a 3-step operation. The GHZ states of the N-group qubits are generated by using N-group qutrits placed in the N cavities. Here, "qutrit" refers to a three-level quantum system with the two lowest levels representing a qubit while the third level acting as an intermediate state necessary for the GHZ state creation. This proposal does not depend on the architecture of the cavity-based quantum network and the way for coupling the cavities. The operation time is independent of the number of qubits. The GHZ states are prepared deterministically because no measurement on the states of qutrits or cavities is needed. In addition, the third energy level of the qutrits during the entire operation is virtually excited and thus decoherence from higher energy levels is greatly suppressed. This proposal is quite general and can in principle be applied to create GHZ states of many qubits using different types of physical qutrits (e.g., atoms, quantum dots, NV centers, various superconducting qutrits, etc.) distributed in multiple cavities. As a specific example, we further discuss the experimental feasibility of preparing a GHZ state of four-group transmon qubits (each group consisting of three qubits) distributed in four one-dimensional transmission line resonators arranged in an array.
arXiv comment26 pages, 7 figures
References in corpus (50)
- Charge insensitive qubit design derived from the Cooper pair box
- Quantum secret sharing
- Quantum-enhanced measurements: beating the standard quantum limit
- Cavity quantum electrodynamics for superconducting electrical circuits: an architecture for quantum computation
- Hybrid quantum circuits: Superconducting circuits interacting with other quantum systems
- How to share a quantum secret
- Atomic physics and quantum optics using superconducting circuits
- Microwave photonics with superconducting quantum circuits
- 14-qubit entanglement: creation and coherence
- Quantum computation with ions in thermal motion
- Reliable Quantum Computers
- On the Improvement of Frequency Stardards with Quantum Entanglement
- A Multiparticle Generalization of Entanglement Swapping
- Generation and manipulation of Schrödinger cat states in Rydberg atom arrays
- Large-scale silicon quantum photonics implementing arbitrary two-qubit processing
- The Single-Photon Router
- A microfabricated surface-electrode ion trap for scalable quantum information processing
- 18-qubit entanglement with photon's three degrees of freedom
- 10-qubit entanglement and parallel logic operations with a superconducting circuit
- Effective Hamiltonian Theory and Its Applications in Quantum Information
- 12-photon entanglement and scalable scattershot boson sampling with optimal entangled-photon pairs from parametric down-conversion
- Efficient engineering of multi-atom entanglement through single-photon detections
- Implementation of a Toffoli Gate with Superconducting Circuits
- Quantum information processing with superconducting qubits in a microwave field
- Observation of multi-component atomic Schrödinger cat states of up to 20 qubits
- Fault-Tolerant Error Correction with Efficient Quantum Codes
- A Schrodinger Cat Living in Two Boxes
- Possible realization of entanglement, logical gates and quantum information transfer with superconducting-quantum-interference-device qubits in cavity QED
- Efficient many-party controlled teleportation of multi-qubit quantum information via entanglement
- Using Sideband Transitions for Two-Qubit Operations in Superconducting Circuits
- Photonic architecture for scalable quantum information processing in NV-diamond
- Coherence and Decay of Higher Energy Levels of a Superconducting Transmon Qubit
- Excited-state spectroscopy of single NV defects in diamond using optically detected magnetic resonance
- Two-resonator circuit QED: A superconducting quantum switch
- Geometric quantum computation and multi-qubit entanglement with superconducting charge qubits inside a cavity
- Quantum information processing and multiatom entanglement engineering with a thermal cavity
- Cavity QED with separate photon storage and qubit readout modes
- Generating entanglement between microwave photons and qubits in multiple cavities coupled by a superconducting qutrit
- A hybrid quantum circuit consisting of a superconducting flux qubit coupled to both a spin ensemble and a transmission-line resonator
- Multipartite entangled states in coupled quantum dots and cavity-QED
- Benchmarking a Teleportation Protocol realized in Superconducting Circuits
- Generation of GHZ entangled states of photons in multiple cavities via a superconducting qutrit or an atom through resonant interaction
- Heralded generation of entanglement with coupled cavities
- Arbitrary control of coherent dynamics for distant qubits in a quantum network
- Entangling superconducting qubits in a multi-cavity system
- Generating and stabilizing the GHZ state in circuit QED: Joint measurement, Zeno effect and feedback
- Entanglement generation and quantum information transfer between spatially-separated qubits in different cavities
- Greenberger-Horne-Zeilinger generation protocol for N superconducting transmon qubits capacitively coupled to a quantum bus
- Generating multipartite entangled states of qubits distributed in different cavities
- Quantum computation by optically coupled steady atoms/quantum-dots inside a quantum electro-dynamic cavity