If resistors contribute to thermal noise (Johnson noise in the form of the formula 0.13 * Sqrt (Resistance) * Sqrt (BW). If the resistor temperature is lowered, would the noise lessened? Are there applications where ordinary (not superconductor materials) resistors or equivalent is sort of put in a a tiny heat exchanger akin operating on same principle as a refrigerator or freezer and the thermal noise diminish so much but the component still functional? Are there any resistor accessories to lower its temperature?