**Linking general relativity and quantum mechanics with wormholes.**

**18 AUG 2016**

One of the most stubborn problems in physics today is the fact that our two best theories to explain the Universe - general relativity and quantum mechanics - function perfectly well on their own, but as soon as you try to combine them, the maths just doesn’t work out.

But a Stanford theoretical physicist has just come up with a new equation that suggests the key to finally connecting the two could be found in bizarre spacetime tunnels called wormholes.

The equation is deceptively simple: ER = EPR.

It’s not made up of numerical values, but instead represents the names of some key players in theoretical physics.

On the left side of the equation, the ER stands for Einstein and Nathan Rosen, and refers to a 1935 paper they wrote together describing wormholes, known technically as Einstein-Rosen bridges.

On the right side of the equation, EPR stands for Einstein, Rosen and Boris Podolsky, who co-wrote another paper that yeardescribing quantum entanglement.

Back in 2013, physicist Leonard Susskind from Stanford University and Juan Maldacena from the Institute for Advance Study at Princeton suggested that the two papers could be describing pretty much the same thing - something that no one else in the field had previously considered, including Einstein himself.

Now Susskind is back to discuss the implications if he’s in fact right.

more at link:

http://www.sciencealert.com/this-ne...wo-biggest-theories-in-physics-says-physicist

One of the most stubborn problems in physics today is the fact that our two best theories to explain the Universe - general relativity and quantum mechanics - function perfectly well on their own, but as soon as you try to combine them, the maths just doesn’t work out.

But a Stanford theoretical physicist has just come up with a new equation that suggests the key to finally connecting the two could be found in bizarre spacetime tunnels called wormholes.

The equation is deceptively simple: ER = EPR.

It’s not made up of numerical values, but instead represents the names of some key players in theoretical physics.

On the left side of the equation, the ER stands for Einstein and Nathan Rosen, and refers to a 1935 paper they wrote together describing wormholes, known technically as Einstein-Rosen bridges.

On the right side of the equation, EPR stands for Einstein, Rosen and Boris Podolsky, who co-wrote another paper that yeardescribing quantum entanglement.

Back in 2013, physicist Leonard Susskind from Stanford University and Juan Maldacena from the Institute for Advance Study at Princeton suggested that the two papers could be describing pretty much the same thing - something that no one else in the field had previously considered, including Einstein himself.

Now Susskind is back to discuss the implications if he’s in fact right.

more at link:

http://www.sciencealert.com/this-ne...wo-biggest-theories-in-physics-says-physicist