Yes, quantum particles can indeed feel the effects of gravity. Gravity is a fundamental force in physics that affects all objects with mass or energy, including quantum particles. In the framework of general relativity, gravity is described as the curvature of spacetime caused by mass and energy.
Quantum particles, such as electrons, protons, and neutrons, have mass and energy, so they are subject to the gravitational force. The behavior of quantum particles in a gravitational field is described by a branch of physics called quantum gravity or quantum field theory on curved spacetime.
However, it's important to note that the effects of gravity on quantum particles are typically negligible unless we are dealing with extremely massive or energetic particles or situations involving strong gravitational fields, such as black holes or the early universe. In everyday circumstances, the effects of gravity on quantum particles are typically overshadowed by other forces and interactions.
To study the interplay between quantum mechanics and gravity, scientists are actively exploring theories such as quantum gravity and attempting to develop a consistent framework that unifies the principles of quantum mechanics and general relativity. These efforts aim to understand the behavior of quantum particles in the presence of strong gravitational fields and potentially resolve fundamental questions about the nature of space, time, and the universe.