Do we owe our existence to weird ‘virtual’ particles?

Physicists have long sought to understand the fundamental building blocks of the universe, but a closer examination of the human body reveals a more complex and intriguing picture. According to physicist and columnist Chanda Prescod-Weinstein, the notion of particles at the atomic level barely scratches the surface of what makes up the human form. Beneath this level lies a realm of "not-exactly-real particles" that enable the very fabric of our existence.

These particles, often referred to as "quasiparticles," emerge from the interactions and collective behavior of atoms and subatomic particles. Quasiparticles are not single entities, but rather emergent properties of complex systems, born from the intricate dance of particles and forces that govern our physical reality. They play a crucial role in maintaining the structure and function of our bodies, from the cohesion of cells to the transmission of nerve impulses. For instance, excitons, a type of quasiparticle, facilitate the transfer of energy within biological molecules, while phonons, another quasiparticle, enable the propagation of vibrations through solid materials, such as bone.

The concept of quasiparticles highlights the intricate web of interactions that underlies the human body, blurring the lines between the microscopic and macroscopic realms. By delving into this realm, scientists can gain a deeper understanding of the fundamental laws governing our existence and the intricate mechanisms that sustain life. As Prescod-Weinstein's work demonstrates, the human body is a complex, dynamic system, and unraveling its secrets requires a nuanced understanding of the not-exactly-real particles that make it all possible.