# Fast quantum information transfer with superconducting flux qubits coupled to a cavity

@article{Yang2012FastQI, title={Fast quantum information transfer with superconducting flux qubits coupled to a cavity}, author={Chui-Ping Yang}, journal={Journal of Physics A}, year={2012}, volume={45}, pages={205304} }

We present a way to realize quantum information transfer with superconducting flux qubits coupled to a cavity. Because only resonant qubit–cavity and qubit– pulse interactions are applied, the information transfer can be performed much faster when compared with the previous proposals. This proposal does not require adjustment of the qubit level spacings during the operation. Moreover, neither uniformity in the device parameters nor exact placement of qubits in the cavity are needed.

## 6 Citations

Quantum State Transfer with Tunable Couplings for Superconducting Qubits

- Physics
- 2013

Currently, scalability and decoherence are still the two crucial problems for realizing large-scale quantum computation. To transfer information efficiently in the field of quantum computer and…

Implementing N-quantum phase gate via circuit QED with qubit–qubit interaction

- Physics
- 2016

We propose a method for realizing a quantum phase gate of one qubit simultaneously controlling N target qubits based on the qubit–qubit interaction. We show how to implement the proposed gate with…

Realizing an N-two-qubit quantum logic gate in a cavity QED with nearest qubit-qubit interaction

- Computer Science, PhysicsQuantum Inf. Comput.
- 2016

Numerical simulation under the influence of the gate operations shows that the NTCP gate scheme could be achieved efficiently within current state-of-the-art technology.

Generation of a macroscopic entangled coherent state using quantum memories in circuit QED

- Physics, MedicineScientific reports
- 2016

This work proposes a way to generate a macroscopic W-type entangled coherent state using quantum memories in circuit QED using nitrogen-vacancy center ensembles, each located in a different cavity, which simplifies the circuit.

Transfer of spin squeezing and particle entanglement between atoms and photons in coupled cavities via two-photon exchange

- Physics
- 2012

We examine transfer of particle entanglement and spin squeezing between atomic and photonic subsystems in optical cavities coupled by two-photon exchange. Each cavity contains a single atom,…

Fast and robust population transfer with a Josephson qutrit via shortcut to adiabaticity

- Medicine, PhysicsScientific Reports
- 2018

The protocol could provide a promising avenue to experimentally perform fast and robust quantum operations on Josephson artificial atoms via invariant-based shortcut to adiabaticity.

## References

SHOWING 1-10 OF 24 REFERENCES

Quantum information transfer with Cooper-pair box qubits in circuit QED

- Physics
- 2010

We propose a feasible scheme to transfer quantum information with Cooper-pair box qubits arrayed in a circuit QED. Qubits interact with a quantum data bus generated by a one-dimensional transmission…

Possible realization of entanglement, logical gates, and quantum-information transfer with superconducting-quantum-interference-device qubits in cavity QED

- Physics
- 2003

We present a scheme to achieve maximally entangled states, controlled phase-shift gate, and SWAP gate for two superconducting-quantum-interference-device (SQUID) qubits, by placing SQUIDs in a…

Quantum information transfer and entanglement with SQUID qubits in cavity QED: a dark-state scheme with tolerance for nonuniform device parameter.

- Physics, MedicinePhysical review letters
- 2004

C cavity-SQUID systems provide a new way for production of nonclassical microwave source and quantum communication and the strong coupling limit can be achieved with SQUID qubits in a microwave cavity.

Cavity quantum electrodynamics with separate photon storage and qubit readout modes.

- Physics, MedicinePhysical review letters
- 2010

We present the realization of a cavity quantum electrodynamics setup in which photons of strongly different lifetimes are engineered in different harmonic modes of the same cavity. We achieve this in…

An energy relaxation tolerant approach to quantum entanglement, information transfer, and gates with superconducting-quantum-interference-device qubits in cavity QED

- Physics
- 2004

A scheme is proposed for realizing quantum entanglement, information transfer, CNOT gates, and SWAP gates with superconducting-quantum-interference-device (SQUID) qubits in cavity QED. In the scheme,…

Coupling superconducting qubits via a cavity bus

- Physics, MedicineNature
- 2007

These experiments show that two nearby qubits can be readily coupled with local interactions, and show the implementation of a quantum bus, using microwave photons confined in a transmission line cavity, to couple two superconducting qubits on opposite sides of a chip.

Coherent dynamics of a flux qubit coupled to a harmonic oscillator

- Physics, MedicineNature
- 2004

This work demonstrates entanglement between a superconducting flux qubit and asuperconducting quantum interference device (SQUID), which provides the measurement system for detecting the quantum states and an effective inductance that, in parallel with an external shunt capacitance, acts as a harmonic oscillator.

Arbitrary rotation and entanglement of flux SQUID qubits

- Physics
- 2004

We propose an approach for the arbitrary rotation of a three-level superconducting quantum interference device (SQUID) qubit and describe a strategy for the creation of coherence transfer and…

n-qubit-controlled phase gate with superconducting quantum-interference devices coupled to a resonator

- Physics
- 2005

We present a way to realize an n-qubit controlled phase gate with superconducting quantum-interference devices (SQUIDs) by coupling them to a superconducting resonator. In this proposal, the two…

Cavity quantum electrodynamics for superconducting electrical circuits: An architecture for quantum computation

- Physics
- 2004

We propose a realizable architecture using one-dimensional transmission line resonators to reach the strong-coupling limit of cavity quantum electrodynamics in superconducting electrical circuits.…