The heat transistor has an 'off' and an 'on' state. In the 'off' state an energy of e 2 /2 C is needed to add an electron to the island or to take one away (where e is the charge on the electron ...

The underlying issue is closely linked to the end of Dennard scaling, a principle that once allowed engineers to shrink ...

UCLA researchers have made an electrically-controlled solid-state ‘transistor’ for thermal energy, with a heat-flow on-off ratio of >13:1 when controlled with a ±2.5V base bias at room temperature.