Physics for You

A new way of studying biology is suggested by quantum physics and the findings may completely alter our knowledge of how life functions by Clarice D. Aiello , The Conversation.

Consider utilising your smartphone to regulate your own cells' activity to treat illnesses and injuries. It sounds like something out of a sci-fi author's excessively hopeful imagination. But thanks to the developing study of quantum biology, this might be a reality in the future.

The knowledge and control of biological processes at ever-smaller dimensions, from protein folding to genetic engineering, have advanced tremendously during the past few decades. However, little is known about how much quantum effects affect living systems.

It is impossible for classical physics to explain the processes that take place between atoms and molecules, known as quantum effects. The Newtonian laws of motion and other principles of classical mechanics are known to fail at atomic scales for more than a century. Quantum mechanics is a separate set of laws that governs how tiny objects act.

Quantum mechanics might appear illogical and even magical to humans since they can only view the macroscopic, or visible to the unaided eye, world. In the quantum world, things that you might not expect happen, such as superposition—the state of being in two locations at once—or electrons "tunnelling" past minute energy barriers and emerging undamaged on the other side.

I have a background in quantum engineering. The focus of quantum mechanics research is typically technology. Nevertheless, and perhaps surprisingly, there is mounting proof that nature, an engineer with billions of years of experience, has mastered the art of utilising quantum mechanics to its full potential. If this is accurate, it shows how drastically inadequate our knowledge of biology is. It also implies that using the quantum characteristics of biological matter, we could be able to influence physiological processes.

Biological quantumness is probably genuine.
Quantum phenomena can be manipulated by researchers to create more advanced technology. You actually already live in a quantum-powered world because of the transistors in your computer, GPS, magnetic resonance imaging, laser pointers, and more.

In general, quantum effects only manifest at very small length and mass scales, or when temperatures approach absolute zero. This is because quantum objects like atoms and molecules lose their "quantumness" when they uncontrollably interact with each other and their environment. In other words, a macroscopic collection of quantum objects is better described by the laws of classical mechanics. Everything that starts quantum dies classical. For example, an electron can be manipulated to be in two places at the same time, but it will end up in only one place after a short while—exactly what would be expected classically.

It is therefore anticipated that most quantum effects will quickly vanish in a complex, noisy biological system, washed out in what physicist Erwin Schrödinger called the "warm, wet environment of the cell." According to the majority of physicists, the fact that the living world functions at high temperatures and in complicated circumstances means that biology can be completely and accurately represented by classical physics: no weird barrier-crossing, no existing in two places at once.

Learning quantum biology:-

Scientists are faced with both an intriguing new frontier and a challenging problem as a result of the tantalising possibility that minute quantum effects can modify biological processes. Tools that can monitor the quick time scales, tiny length scales, and subtle variations in quantum states that give rise to physiological changes—all integrated inside a conventional wet lab environment—are necessary for studying quantum mechanical effects in biology.

I create tools to investigate and manipulate the quantum characteristics of tiny objects like electrons. In addition to having mass and charge, electrons also have a third quantum attribute called spin. Similar to how charge determines how electrons interact with an electric field, spin determines how electrons interact with a magnetic field. I've been doing quantum experiments in my own lab since graduate school with the goal of using specialised magnetic fields to alter the spins of certain electrons.

Research has demonstrated that many physiological processes are influenced by weak magnetic fields. These processes include stem cell development and maturation, cell proliferation rates, genetic material repair and countless others. These physiological responses to magnetic fields are consistent with chemical reactions that depend on the spin of particular electrons within molecules. Applying a weak magnetic field to change electron spins can thus effectively control a chemical reaction's final products, with important physiological consequences.

Researchers are now unable to pinpoint precisely what magnetic field strength and frequency trigger particular chemical reactions in cells due to a lack of understanding of how such processes function at the nanoscale level. The capabilities of today's cellphone, wearable, and miniaturisation technologies are already enough to create customised, mild magnetic fields that alter physiology in both positive and negative ways. Therefore, a "deterministic codebook" of how to translate quantum causes to physiological outcomes is the final piece of the puzzle.

In the future, researchers may be able to create non-invasive, remote-control, cell phone-accessible medicinal devices by fine-tuning nature's quantum qualities. Potential applications for electromagnetic therapies include the prevention and treatment of illnesses like brain tumours as well as biomanufacturing processes like boosting the production of lab-grown meat.