High School Objective-collapse theory, collapse for large objects

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Objective-collapse theory suggests that larger objects, such as a chair, experience wave function collapse differently than microscopic particles. The theory posits that the wave of the chair collapses into a definite position, but the collapse may occur more slowly than for smaller particles, allowing it to remain in a collapsed state longer. This raises questions about the nature of observation and measurement in quantum mechanics, particularly how it applies to macroscopic objects. The discussion highlights the implications of this theory on our understanding of reality at different scales. Overall, the theory challenges traditional views of quantum mechanics by suggesting a distinct behavior for large objects compared to microscopic ones. Reference: Objective-collapse theory discussions in quantum mechanics forums.
TheHeraclitus
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Large objects constantly collapsing or remaining collapsed longer?
Let's say we have a big object like chair. According to Objective-collapse theory, is the wave of the chair collapsing and spreading out so fast we see it in one definite position or, does the chair collapse and it remains in this collapsed state longer than microscopic objects like atoms?
 
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TheHeraclitus said:
Objective-collapse theory
Please give a reference for this.
 

Thread 'Two equivalent statements of time reversal symmetric Hamiltonian'

Time reversal invariant Hamiltonians must satisfy ##[H,\Theta]=0## where ##\Theta## is time reversal operator. However, in some texts (for example see Many-body Quantum Theory in Condensed Matter Physics an introduction, HENRIK BRUUS and KARSTEN FLENSBERG, Corrected version: 14 January 2016, section 7.1.4) the time reversal invariant condition is introduced as ##H=H^*##. How these two conditions are identical?
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