We report amplification of electromagnetic waves by a single artificial atom in open 1D space. Our three-level artificial atom—a superconducting quantum circuit—coupled to a transmission line presents an analog of a natural atom in open space. The system is the most fundamental quantum amplifier whose gain is limited by a spontaneous emission mechanism. The noise performance is determined by the quantum noise revealed in the spectrum of spontaneous emission, also characterized in our experiments
We address the recent advances on microwave quantum optics with artificial atoms. This field relies ...
Artificially engineered atoms, built using superconducting electrical circuits, have had a broad imp...
We have embedded an artificial atom, a superconducting transmon qubit, in a 1D open space and invest...
By strongly driving a cyclic-transition three-level artificial atom, demonstrated by such as a flux-...
Superconducting quantum bits originally developed for quantum computation have properties similar to...
Quantum optics is the study of interaction between atoms and photons. In the eight papers of this th...
We present experimental observation of electromagnetically induced transparency (EIT) on a single ma...
We investigate three types of amplification processes for light fields coupling to an atom near the ...
An atom in open space can be detected by means of resonant absorption and reemission of electromagne...
We address recent advances in microwave quantum optics with artificial atoms in one-dimensional (1D)...
We address recent advances in quantum optics with propagating microwaves in superconducting circuits...
The realization of a quantum network composed of quantum nodes which process quantum fields and quan...
This thesis focuses on the experimental realisation of an artificial atom with a V-shape energy leve...
Reading out the state of superconducting artificial atoms typically relies on dispersive coupling to...
We have embedded an artificial atom, a superconducting transmon qubit, in an open transmission line ...
We address the recent advances on microwave quantum optics with artificial atoms. This field relies ...
Artificially engineered atoms, built using superconducting electrical circuits, have had a broad imp...
We have embedded an artificial atom, a superconducting transmon qubit, in a 1D open space and invest...
By strongly driving a cyclic-transition three-level artificial atom, demonstrated by such as a flux-...
Superconducting quantum bits originally developed for quantum computation have properties similar to...
Quantum optics is the study of interaction between atoms and photons. In the eight papers of this th...
We present experimental observation of electromagnetically induced transparency (EIT) on a single ma...
We investigate three types of amplification processes for light fields coupling to an atom near the ...
An atom in open space can be detected by means of resonant absorption and reemission of electromagne...
We address recent advances in microwave quantum optics with artificial atoms in one-dimensional (1D)...
We address recent advances in quantum optics with propagating microwaves in superconducting circuits...
The realization of a quantum network composed of quantum nodes which process quantum fields and quan...
This thesis focuses on the experimental realisation of an artificial atom with a V-shape energy leve...
Reading out the state of superconducting artificial atoms typically relies on dispersive coupling to...
We have embedded an artificial atom, a superconducting transmon qubit, in an open transmission line ...
We address the recent advances on microwave quantum optics with artificial atoms. This field relies ...
Artificially engineered atoms, built using superconducting electrical circuits, have had a broad imp...
We have embedded an artificial atom, a superconducting transmon qubit, in a 1D open space and invest...