Skip to main content

All Questions

Filter by
Sorted by
Tagged with
0 votes
0 answers
21 views

Given a viably physical (isolated), quantum many body Hamiltonian, does an initial state of a superposition of energy eigenstates ever thermalize?

Given a viably physical, quantum many body Hamiltonian of a isolated system, if initially a state is prepared which is a superposition of energy eigenstates in an interval centered at E and E', not at ...
Fibonacci M's user avatar
0 votes
0 answers
45 views

Irreversibility as an artificial concept and relationship with quantum mechanics

In my statistical physics classes we are following the book Statistical physics of particles - by Mehren Kardar and we were viewing the derivation of the boltzmann equation and irreversibility . ...
Bidon's user avatar
  • 669
8 votes
3 answers
383 views

Is an interaction-free measurement an irreversible process?

From what I've understood from reading different online sources including PSE*, measurements in quantum mechanics are generally argued to be irreversible (at least, when a macroscopic measuring device ...
dahemar's user avatar
  • 2,493
0 votes
1 answer
255 views

Change in Shannon entropy of a quantum circuit of Hadamard gate and a loop

The following Q&A about reversible computing is available here. It has listed a number of practical scenarios where a reversible circuit can still be dissipating heat. Let's assume that none of ...
Omar Shehab's user avatar
20 votes
4 answers
2k views

Hawking radiation and reversibility

It's often said that, as long as the information that fell into a black hole comes out eventually in the Hawking radiation (by whatever means), pure states remain pure rather than evolving into mixed ...
Scott Aaronson's user avatar