How does a fighter suddenly slow down in the air and automatically brake? Does the fighter have a throttle?

Fighters have throttles, so reducing the throttle can reduce the speed of the plane. Fighters can do certain maneuvers in the air (seemingly called pneumatic braking) to reduce the speed quickly and greatly, but it is dangerous to some extent, which is a test of the aircraft's strength. There is such a scene in the movie Top Gun. Probably reduce the throttle quickly, and then lift the nose quickly to make the wing direction close to the flight direction. Under the huge air resistance, the speed of the plane will decrease rapidly, similar to the cobra action of Su -27.