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XXDD
  • Member for 8 years, 10 months
  • Last seen more than 5 years ago
10 votes
0 answers
395 views

What's the physical meaning of the eigenvalues of the spin-flipped density matrix?

10 votes
2 answers
4k views

Dimensional analysis of metric tensor

10 votes
1 answer
2k views

How to define the 'gapped ' and 'gapless' states?

10 votes
0 answers
286 views

The physical picture of uncle Hamiltonian? [closed]

6 votes
0 answers
106 views

How can blackholes be fast information scramblers?

5 votes
0 answers
181 views

Black holes in AdS/CFT

5 votes
1 answer
200 views

If a state can be efficiently represented by a Projected Entangled Pair State (PEPS), can we prepare it physically?

5 votes
0 answers
434 views

About the relation between entropy and Fisher information matrix

4 votes
1 answer
1k views

Approximation of an unitary operator by simple operators

4 votes
0 answers
237 views

Question about $\alpha-$plane in twistor theory

4 votes
1 answer
298 views

A question about the universal quantum cloning machine (UQCM)

3 votes
0 answers
160 views

In twistor theory, what's the relation between points with dual Plucker coordinates? Also about a special null line

3 votes
1 answer
189 views

Is it possible to make a state tomography of an entangled state only by measurements on subsystems?

3 votes
1 answer
1k views

About quantum measurement problem, proper or improper mixture?

3 votes
0 answers
365 views

Interaction free measurement and the Elitzur–Vaidman bomb tester, paradox solved?

3 votes
1 answer
234 views

Relation between quantum entanglement and quantum state complexity

3 votes
0 answers
172 views

Ground state degeneracy and quantum phase transition

2 votes
0 answers
311 views

About complexity of quantum states

2 votes
0 answers
96 views

Teleportation and boosted observer, special relativity

2 votes
1 answer
136 views

About 2D graph state and branching MERA

2 votes
0 answers
162 views

About the origin of the thermality in Unruh effect

2 votes
0 answers
59 views

About the paper 'Exponential Communication Complexity Advantage from Quantum Superposition of the Direction of Communication'

2 votes
0 answers
72 views

Diameter of the space of unitary operation manifold for quantum computation?

2 votes
1 answer
246 views

How to understand the three state descriptions from 3 observers of such a system?

2 votes
0 answers
147 views

Is density matrix really a description of 'state'? [closed]

2 votes
0 answers
134 views

How to understand the relationship between these two geometrical structures?

1 vote
0 answers
76 views

Black hole evaporation, mass or bit?

1 vote
1 answer
868 views

How to understand the measurement on entangled state in the following cases? [closed]

1 vote
2 answers
174 views

How to define a 'clone' of a mixed state?

1 vote
0 answers
67 views

How to understand the instant state collapse in all references?