Development of a Thermal Stabilization System for a Quantum Frequency Standard

The paper substantiates the need to improve the thermoregulation scheme of the quantum frequency standard. A new circuit for a QFS thermoregulator with a rubidium gas cell has been developed using a PID-controller and an instrumentation amplifier. The operation of the new circuit was simulated in the LTspice environment, which showed the advantage and efficiency of its use compared to the previous thermoregulator circuit. Transient processes in the circuit of the thermostat are analyzed. The development of a new thermal control unit circuit based on rubidium-87 atoms is of great practical importance in the field of quantum computing and precise measurements.