Mach's Principle: What Is It & How Can I Understand It?

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Mach's Principle is a philosophical concept that suggests the inertia of an object is influenced by the distribution of mass in the universe. It lacks a clear, consistent definition across different texts, making it difficult to articulate in purely mathematical terms. The principle has sparked various interpretations and debates within the physics community. Understanding Mach's Principle requires grappling with its philosophical implications rather than seeking a straightforward mathematical explanation. Overall, it remains a topic of interest and discussion in both physics and philosophy.
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I learned about mach's principle from a book. But I can'understand the details of it. So can you please explain me what is mach's principle? Is it correct?
 
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Hi there sanjone! Welcome to the forum. We actually had a recent discussion about this so perhaps you'll find it helpful: https://www.physicsforums.com/showthread.php?t=697284&highlight=mach's+principle You'll notice from the discussion that Mach's principle isn't even defined in an unambiguous, consistent manner amongst various texts mainly because it cannot really be stated in purely mathematical terms (it's usually thought of as a philosophical statement).
 

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In an inertial frame of reference (IFR), there are two fixed points, A and B, which share an entangled state $$ \frac{1}{\sqrt{2}}(|0>_A|1>_B+|1>_A|0>_B) $$ At point A, a measurement is made. The state then collapses to $$ |a>_A|b>_B, \{a,b\}=\{0,1\} $$ We assume that A has the state ##|a>_A## and B has ##|b>_B## simultaneously, i.e., when their synchronized clocks both read time T However, in other inertial frames, due to the relativity of simultaneity, the moment when B has ##|b>_B##...
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