Directlink:

  1. Ferdinand-Braun-Institut
  2. Research
  3. III-V Electronics
  4. RF Competence & Applications
  5. Microwaves - Quantum Technology

Microwaves in Quantum Technology

Information processing and sensor technologies based on quantum mechanics are a top-notch research topic today.  In our research area Integrated Quantum Technology, we bundle our physical understanding and the technical expertise of the components and technology concepts required.

In the area of III-V Electronics, we have extensive expertise in electromagnetic field simulations and microwave circuits. We use this know-how to develop dedicated circuits for applications in quantum technology.

Among others, we are currently realizing a planar structure with a double loop to create a three-dimensional atom trap close to the surface. It offers the advantage of high magnetic field gradients with relatively low currents, a compact design and improved (optical) access. This makes them key to the further miniaturization of atom-based quantum sensors.

Three-dimensional model of a 1.2 cm x 1.2 cm aluminum nitride chip for generating a magnetic flux density in the diamond at 2.879 GHz to excite a magnetic field sensor. The sensor is based on an ensemble of nitrogen vacancy centers in diamond. The circuit board was designed based on 3D field simulations so that it meets the requirements for the quantum sensor.
Three-dimensional model of a 1.2 cm x 1.2 cm aluminum nitride chip for generating a magnetic flux density in the diamond at 2.879 GHz to excite a magnetic field sensor. The sensor is based on an ensemble of nitrogen vacancy centers in diamond. The circuit board was designed based on 3D field simulations so that it meets the requirements for the quantum sensor.
Magnetic flux density of the concentrically arranged double loop to create a three-dimensional atom trap in the area around the chip surface. A planar conductor structure for creating a three-dimensional atom trap which, compared to conventional magnetic traps based on macroscopic coils, offers the advantage of high magnetic field gradients with relatively low currents, a compact design and improved (optical) access. It thus represents a key for the further miniaturization of atom-based quantum sensors.
Magnetic flux density of the concentrically arranged double loop to create a three-dimensional atom trap in the area around the chip surface. A planar conductor structure for creating a three-dimensional atom trap which, compared to conventional magnetic traps based on macroscopic coils, offers the advantage of high magnetic field gradients with relatively low currents, a compact design and improved (optical) access. It thus represents a key for the further miniaturization of atom-based quantum sensors.