Shortest Time Frame: Limit, Measurability, Planck's Constant

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In summary, the shortest time frame is a limit that can be measured using Planck's constant. This constant is the smallest unit of time that can be measured, and it is essential in understanding the nature of time and the physical world. By understanding this limit and its measurability, scientists are able to make precise calculations and predictions about our universe. Planck's constant has also played a significant role in the development of quantum mechanics, leading to groundbreaking discoveries in physics. Overall, the concept of the shortest time frame has greatly influenced our understanding of time and the fundamental laws that govern our universe.
  • #1
Hyperspace2
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What is the shortest time duration that one particular frame can exist?(between two interval of universe) or what is the shortest duration between two unique events in the universe?

Has it got limit?

Is it measurable?


If it is , to what extent it is measurable?

What's our capabilities ( devices we got) to measure them?

is this shortest time frame has something to do with Planck's constant(h)?

Thanks in advance for your valuable replies.
 
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  • #2
Hyperspace2 said:
What is the shortest time duration that one particular frame can exist?(between two interval of universe) or what is the shortest duration between two unique events in the universe?

Has it got limit?

Is it measurable?


If it is , to what extent it is measurable?

What's our capabilities ( devices we got) to measure them?

is this shortest time frame has something to do with Planck's constant(h)?

Thanks in advance for your valuable replies.
[tex]\frac{\hbar}{4E}[/tex]
where E is the total energy of the universe. I forget if the factor in the denominator is supposed to be 2 or 4. Anyway, it is a consequence of the Heisenberg uncertainty principle. This is a rather short amount of time because the numerator is very small the the denominator is very large. It cannot be measured in any practical way.
 
  • #3
Thank you for reply. That was helpfull.

Can you tell how can we define the time frame in the light of this Planck's constant.

can we say an event in universe is a single vibration consisting some certain energy(again in terms of Planck's constant).
 
  • #4
Hyperspace2 said:
Thank you for reply. That was helpfull.

Can you tell how can we define the time frame in the light of this Planck's constant.

can we say an event in universe is a single vibration consisting some certain energy(again in terms of Planck's constant).
I hope we get a physicist involved here because I am not sure of the answer. Theoretically, though not practically, it may be that you could come up with a wave equation for the state of the entire universe, I'm not sure. If so, it would contain information about the energy in the universe, but there would be some uncertainty in the amount, meaning it would give you a range of values rather than a single value. If you were to actually measure the energy of the entire universe, the result would be one of the numbers in the range, but before you make the measurement, you have no way of knowing which one you'll get. However, I have no idea if you can identify events with vibrations of this wave equation.
 
  • #5
Hyperspace,

You may be interested in reading: http://www.rdmag.com/News/2008/07/Attosecond-clock--takes-measure-of-quantum-tunneling/"

In the not too distant future I was planning a post on it, but have yet to do the hard research necessary to make it meaningful to a layman (and others like myself).

You beat me to one of the more tantalizing aspects of my digging into it.

I hope you find it useful, and that it sparks more meaningful questions and discussion by all who contribute here.

Rhody... :wink:
 
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  • #6
rhody said:
Hyperspace,

You may be interested in reading: http://www.rdmag.com/News/2008/07/Attosecond-clock--takes-measure-of-quantum-tunneling/"

In the not too distant future I was planning a post on it, but have yet to do the hard research necessary to make it meaningful to a layman (and others like myself).

You beat me to one of the more tantalizing aspects of my digging into it.

I hope you find it useful, and that it sparks more meaningful questions and discussion by all who contribute here.

Rhody... :wink:

Thanks for post. I will definitely going to read your link.

I am an electronics engineering student , yet have great respect and passion for physics.

I have lot of questions and confusions(ocean of it) , and I am trying to quench my thirst.

The people like you will be beneficial for me in this forum.

Last question- are you physics student or became already physicist..?

THank you!

Hyperspace2
 
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FAQ: Shortest Time Frame: Limit, Measurability, Planck's Constant

1. What is the shortest time frame that can be measured?

The shortest time frame that can be measured is known as the Planck time. It is approximately 5.39 x 10^-44 seconds.

2. How is the shortest time frame limited?

The shortest time frame is limited by Planck's constant, a fundamental constant in quantum mechanics. This constant sets a limit on the precision with which time can be measured.

3. What is Planck's constant?

Planck's constant is a physical constant that relates the energy of a photon to its frequency. It is denoted by the symbol h and has a value of approximately 6.626 x 10^-34 joule seconds.

4. What is the significance of Planck's constant in measuring time?

Planck's constant plays a crucial role in quantum mechanics and helps define the smallest possible unit of time, the Planck time. It also determines the precision with which time can be measured, as well as other fundamental constants such as the speed of light.

5. Can the shortest time frame ever be measured?

Currently, the shortest time frame cannot be directly measured due to limitations in technology. However, scientists are constantly working on developing new methods and technologies to better understand and measure time at the smallest scales.

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