# Mach-Zehnder Interferometry in a Strongly Driven Superconducting Qubit

@article{Oliver2005MachZehnderII, title={Mach-Zehnder Interferometry in a Strongly Driven Superconducting Qubit}, author={William D. Oliver and Yang Yu and Janice C. Lee and Karl K. Berggren and Leonid S. Levitov and Terry P. Orlando}, journal={Science}, year={2005}, volume={310}, pages={1653 - 1657} }

We demonstrate Mach-Zehnder–type interferometry in a superconducting flux qubit. The qubit is a tunable artificial atom, the ground and excited states of which exhibit an avoided crossing. Strongly driving the qubit with harmonic excitation sweeps it through the avoided crossing two times per period. Because the induced Landau-Zener transitions act as coherent beamsplitters, the accumulated phase between transitions, which varies with microwave amplitude, results in quantum interference fringes…

## 294 Citations

### Landau-Zener-Stückelberg-Majorana interferometry of a superconducting qubit in front of a mirror

- Physics
- 2020

We investigate the Landau-Zener-Stuckelberg-Majorana interferometry of a superconducting qubit in a semi-infinite transmission line terminated by a mirror. The transmon-type qubit is at the node of…

### Population inversion induced by Landau–Zener transition in a strongly driven rf superconducting quantum interference device

- Physics
- 2009

Microwave resonances between discrete macroscopically distinct quantum states with single photon and multiphoton absorption are observed in a strongly driven radio frequency superconducting quantum…

### Large-amplitude driving of a superconducting artificial atom

- PhysicsQuantum Inf. Process.
- 2009

Three experimental works based on Mach–Zehnder-type interferometry between repeated LZS transitions, microwave-induced cooling, and amplitude spectroscopy are reviewed, anticipating they will find application to qubit state-preparation and control methods for quantum information science and technology.

### Floquet Spectroscopy of a Strongly Driven Quantum Dot Charge Qubit with a Microwave Resonator.

- PhysicsPhysical review letters
- 2018

This work investigates a strongly driven GaAs double quantum dot charge qubit weakly coupled to a superconducting microwave resonator, showing distinct quantum features of multiphoton processes and a fringe pattern similar to Landau-Zener-Stückelberg interference.

### Quantum Emulation of Coherent Backscattering in a System of Superconducting Qubits

- Physics
- 2019

In condensed matter systems, coherent backscattering and quantum interference in the presence of time-reversal symmetry lead to well-known phenomena such as weak localization (WL) and universal…

### Landau-Zener-Stückelberg Interference in a Multimode Electromechanical System in the Quantum Regime.

- PhysicsPhysical review letters
- 2019

A configurable interaction between a superconducting qubit and many acoustic modes in the quantum regime is demonstrated, which opens up applications in controlling multiple acoustic modes via parametric modulation.

### Strong-Field Effects in the Rabi Oscillations of the Superconducting Phase Qubit

- PhysicsIEEE Transactions on Applied Superconductivity
- 2007

Rabi oscillations have been observed in many superconducting devices, and represent prototypical logic operations for quantum bits (qubits) in a quantum computer. We use a three-level multiphoton…

### Interband transitions and interference effects in superconducting qubits

- PhysicsQuantum Inf. Process.
- 2009

We investigate phase-sensitive interference effects in a periodically sin(2π frft)-driven, artificial two-state system connected to a microwave resonator at fLC ≃ 800 MHz. We observe two kinds of…

### A silicon-based single-electron interferometer coupled to a fermionic sea

- Physics
- 2018

We study Landau-Zener-Stuckelberg-Majorana (LZSM) interferometry under the influence of projective
readout using a charge qubit tunnel-coupled to a fermionic sea. This allows us to characterize the…

## References

SHOWING 1-10 OF 33 REFERENCES

### Entangled Macroscopic Quantum States in Two Superconducting Qubits

- PhysicsScience
- 2003

Microwave spectroscopy in the 4 to 6 gigahertzrange at 20 millikelvin reveals energy levels that agree well with theoretical results for entangled states.

### Rabi oscillations in a large Josephson-junction qubit.

- PhysicsPhysical review letters
- 2002

A circuit based on a large-area current-biased Josephson junction whose two lowest energy quantum levels are used to implement a solid-state qubit is designed and operated and is the basis of a scalable quantum computer.

### Coherent dynamics of a flux qubit coupled to a harmonic oscillator

- PhysicsNature
- 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.

### Simultaneous State Measurement of Coupled Josephson Phase Qubits

- PhysicsScience
- 2005

This work uses simultaneous single-shot measurement of coupled Josephson phase qubits to directly probe interaction of the qubits in the time domain and observes the antiphase oscillation of the two-qubit |01〉 and |10〉 states.

### Stueckelberg oscillations in the multiphoton excitation of helium Rydberg atoms: Observation with a pulse of coherent field and suppression by additive noise.

- PhysicsPhysical review letters
- 1992

Stueckelberg oscillations in the microwave excitation of helium are observed and reproduced theoretically by the coherent evolution along two isolated Floquet potential curves as the microwave electric field amplitude varies along a half-sine-wave pulse shape.

### Quantum oscillations in two coupled charge qubits

- PhysicsNature
- 2003

This work demonstrates the feasibility of coupling multiple solid-state qubits, and indicates the existence of entangled two-qubit states, and demonstrates a Josephson circuit consisting of two coupled charge qubits.

### Multiphoton transitions in a macroscopic quantum two-state system.

- PhysicsPhysical review letters
- 2004

The widths of the multiphoton absorption dips are shown to scale with the Bessel functions in agreement with theoretical predictions derived from the Bloch equation or from a spin-boson model.

### Strong coupling of a single photon to a superconducting qubit using circuit quantum electrodynamics

- PhysicsNature
- 2004

It is shown that the strong coupling regime can be attained in a solid-state system, and the concept of circuit quantum electrodynamics opens many new possibilities for studying the strong interaction of light and matter.

### Coherent oscillations in a superconducting multilevel quantum system.

- PhysicsPhysical review letters
- 2004

The dependence of the oscillation frequency on microwave power deviates strongly from the linear regime expected for a two-level system and can be very well explained by a theoretical model taking into account the anharmonicity of the multilevel system.

### Quantum-state engineering with Josephson-junction devices

- Physics
- 2001

Quantum-state engineering, i.e., active control over the coherent dynamics of suitable quantum-mechanical systems, has become a fascinating prospect of modern physics. With concepts developed in…