Monday, February 24
quantum systems have opposing arrows of time
New theoretical research shows that time can flow forwards or backwards in quantum systems, challenging our everyday perception of how time progresses.
Over the centuries, scientists have tried to understand the arrow of time – the idea that time flows inevitably in one direction. How can we make sense of the seemingly unrelenting march of time from past to future?
Answers in fundamental physics haven’t been forthcoming. The laws of nature don’t inherently favour a single direction. Whether time moves forward or backward, the equations remain the same.
The explanation of our everyday experience of time is the second law of thermodynamics derived by Austrian physicist Ludwig Boltzmann.
This law states that entropy – the inherent disorder in a system – cannot decrease with the passage of time. This law explains very well the macroscopic world of our everyday experiences. READ MORE...
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