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When unpleasant things happen, do you ever comfort yourself by saying "It's all unitary anyway..."
Finding Comfort in the Unity of Life: Coping with Unpleasant Events
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In summary, the conversation discusses the concept of unitarity in quantum mechanics and quantum field theory. The idea that everything is unitary implies that there is no information loss and that all transformations are reversible. However, there is some doubt about unitarity in quantum gravity. The conversation also touches on the idea of antiunitary operators and the importance of considering the general case rather than just special cases in understanding unitarity. The speakers also mention the role of expectations in unitarity and the possibility of non-unitary behavior in the evolution of theories. Overall, the speakers have different perspectives on the fundamental nature of unitarity and its role in understanding the universe.
- #2
Fra
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> "It's all unitary anyway..."
Is it? :)
/Fredrik
Is it? :)
/Fredrik
- #3
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Fra said:
Well, according to standard quantum mechanics it is, also QFT. Unitarity implies reversibility (unitary transformations are invertible), and also that no information is ever "lost".
There is perhaps some doubt about whether quantum gravity is unitary, last I heard though Hawking had joined the "no information loss" camp.
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turbo
Gold Member
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No. Existence may be a zero-sum game at some level, but we as humans do not exist/perceive at that level.
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Proof.Beh
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Fra said:
Is except it?
Thanks.
Mr Beh
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- #6
samalkhaiat
Science Advisor
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Why not antiunitary? 
In QFT, time reversal transformation is generated by the antiunitary operator;
[tex]\mathcal{T} \phi (x,t) \mathcal{T}^{-1} = \eta_{T} \phi (x,-t)[/tex]
So is any non-singular transformation!
All depends on the vacuum; whether it is true or fulse vacuum!
sam
In QFT, time reversal transformation is generated by the antiunitary operator;
[tex]\mathcal{T} \phi (x,t) \mathcal{T}^{-1} = \eta_{T} \phi (x,-t)[/tex]
So is any non-singular transformation!
All depends on the vacuum; whether it is true or fulse vacuum!
sam
- #7
Fra
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Proof.Beh said:
The way I see it, unitarity is more often than not, the best single guess, but it's not the only option. There mere uncertainty alone implies that to think that there is a fixed unitarity can hardly be true in the general case. But of course in many special cases.
It's not a coincidence though that theories almost be defintion, apply to "special cases".
In my thinking I don't think of special theories, I think of something as close to the general case my small mind can grasp, and I can't accept unitarity as a fundamental thing. Technically, it would IMO be exepctations. But since these expectations are often well supported, they appear to be alost fundamental. But the different in the viewpoints is on the edge of the theories evolution. I have at least, hard to understand a fundamentally evolutionary model without non-unitary behaviour. In my thinking the non-unitary behaviour is even part of the key.
/Fredrik
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Fra
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As long as the non-unitary information part is small in relative significance, it's not a problem IMO. But the non-unitary isn't fundamental either of course. Typically the implication of learning is a desired to inflate the models to make it more unitary.
/Fredrik
/Fredrik
FAQ: Finding Comfort in the Unity of Life: Coping with Unpleasant Events
What is the purpose of "Finding Comfort in the Unity of Life: Coping with Unpleasant Events"?
The purpose of this study is to explore how individuals can find comfort and cope with unpleasant events by recognizing the interconnectedness of all living beings.
How does recognizing the unity of life help in coping with unpleasant events?
Recognizing the unity of life allows individuals to see that they are not alone in their struggles and that all living beings face challenges. This can provide a sense of connection and support, making it easier to cope with difficult situations.
Is there scientific evidence to support the concept of unity of life?
Yes, there is growing research in fields such as social psychology and neuroscience that shows how recognizing interconnectedness can have positive effects on well-being and coping with stress.
Can anyone learn to find comfort in the unity of life, or is it only for certain individuals?
Anyone can learn to find comfort in the unity of life. It is a mindset and perspective that can be developed through self-reflection, mindfulness, and incorporating practices such as gratitude and empathy into daily life.
In what ways can individuals incorporate the concept of unity of life into their coping strategies?
Some ways to incorporate the concept of unity of life into coping strategies include practicing gratitude, connecting with others, and engaging in activities that promote a sense of interconnectedness, such as volunteering or spending time in nature.