This dream came after watching Roger Penrose discus “before the big bang” on YouTube. He suggested that in a thermalized black body compliant universe evidenced by the cosmic microwave background energy spectrum where E=hν = mc², time or inverse time, frequency, does not exist in the absence of matter. “Time” can be curved to “before” the big bang of our current universe. Similarly at an infinitely expanded universe full only of radiation, photons, time again has no meaning without mass.

The dream starts in the refreshment area or bar off a hall full of poster presentations at a “perimeter” conference on quantum and quantum computing. I am talking with a “famous” prof in his early forties and he is holding court to some post docs and post grads. He is skinny with a beard and unruly hair. He is white. As far as he is concerned, I am a nobody.

I say to him that if I have understood it correctly the biggest drawback for quantum computing is qubit coherence time and thereby quantum fidelity. He says yes.

I say that a qubit is a counter-entropic state artificially manufactured in matter in many systems. In these matter based systems tremendous cooling is required to prevent coupling to the nearby thermal bath states which tend to bring about dephasing and lack of fidelity for the prepared qubit. He agrees.

I say that is why they need fuck off big fridges to get close to absolute zero, which is again a counter entropic state when viewed more than locally. He agrees.

That dephasing happens on a temperature and proximity dependent time scale.

I say that thermodynamics is a property of matter and hence time, without matter entropy as no meaning, nor does thermodynamics.

I ask him why nobody is pursuing fast or ultrafast time domain quantum computing? He does not reply.

I say to him if the prepared qubit state is addressed before dephasing occurs, we can use time to outwit or outpace thermalization to bath. Time domain quantum computing could be the answer.

He nods.

I say that the other problem stems from the cycle time of write to zero of the matter involved in the prepared qubits. It should be possible to use a second pulse similar to the state preparation one to reset the qubit clock on a hundreds of megahertz laser repetition rate. We then have a prepare and subsequent write to zero even if the qubit state has been used or partially used in computation. The matter is then ready for us to contravene entropy by writing a qubit.

As the dream ends, I think that it is a fair way from Guru Rinpoche.