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Physics
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Jess Riedel
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quantum-mechanics

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24 Questions

Views Newest Activity Votes
10
54
votes
1
answer
1k
views

What is the upper-limit on intrinsic heating due to dark matter?

particle-physics experimental-physics research-level dark-matter
Jun 4 '14 at 17:48 user47505 247
5
19
votes
0
answers
800
views

What is the largest number of bosons placed in a BEC?

quantum-mechanics experimental-physics many-body bose-einstein-condensate low-temperature-physics
Oct 30 '15 at 18:13 Vendetta 287
6
10
votes
2
answers
572
views

Nonequilibrium thermodynamics in a Boltzmann picture

thermodynamics statistical-mechanics fluctuation-dissipation
Jun 11 '14 at 20:38 Bubble 1,651
4
8
votes
1
answer
286
views

Do small-angle coherent scattering experiments really see coherent effects over arbitrarily large distances?

scattering neutrinos neutrons coherence
Jan 21 '14 at 21:54 Doru Constantin 341
4
7
votes
1
answer
253
views

Is there a formalism for talking about diagonality/commutativity of operators with respect to an overcomplete basis?

quantum-mechanics quantum-information operators
Oct 20 '14 at 0:25 Community♦ 1
 
6
votes
0
answers
43
views

Temperature-pressure plot for superconducting records?

pressure temperature superconductivity
May 28 at 2:14 Jess Riedel 2,758
 
6
votes
1
answer
639
views

What are the strongest sources of collimated neutrons and protons?

particle-physics protons neutrons accelerator-physics
Jun 6 '18 at 5:52 Rob 1,932
 
6
votes
1
answer
101
views

Simplest model of chaos with time-independent smooth Hamiltonian and trivial topology?

classical-mechanics hamiltonian-formalism chaos-theory
May 18 '18 at 19:16 Jess Riedel 2,758
2
6
votes
0
answers
75
views

In a perturbative FRW cosmology, why do constant-density hypersurfaces define a good gauge?

general-relativity cosmology cosmological-inflation gauge-invariance
Sep 4 '15 at 18:28 Danu 14.6k
4
5
votes
1
answer
2k
views

What is the formal definition of spin-independent vs. spin-dependent scattering?

quantum-field-theory astrophysics scattering dark-matter weak-interaction
Jul 24 '13 at 16:39 Ehud Duchovni 11
 
4
votes
1
answer
848
views

Reasonable to expect Moore's law for quantum computing?

quantum-information quantum-computer
Mar 22 at 6:25 Greg Schafer 1
1
4
votes
0
answers
71
views

What are the requirements on conditional unitaries for overcomplete bases?

quantum-information quantum-entanglement decoherence
Jan 26 '18 at 20:03 Emilio Pisanty 101k
1
3
votes
0
answers
108
views

Where does one find pair-correlation functions for various materials?

resource-recommendations material-science atomic-physics correlation-functions data
Sep 27 '13 at 14:39 Qmechanic♦ 118k
 
2
votes
0
answers
59
views

How to calculate material depth at which penetrating radiation direction becomes randomized?

radiation scattering
May 12 '15 at 0:55 Jess Riedel 2,758
 
2
votes
1
answer
56
views

Is there non-trivial multipartite entanglement not witnessed by the spectra of reduced states?

quantum-information quantum-entanglement
Nov 23 '14 at 4:54 Jess Riedel 2,758
1
2
votes
1
answer
260
views

Off-diagonal terms of the Husimi $Q$ function?

quantum-mechanics quantum-information terminology quantum-optics
Jun 10 '14 at 4:19 Jess Riedel 2,758
 
2
votes
0
answers
83
views

Can I usefully interpret a non-unital completely positive (CP) map as a cooling process?

thermodynamics quantum-information density-operator
Oct 27 '13 at 22:33 Qmechanic♦ 118k
 
2
votes
1
answer
88
views

Must neutron speed and diffusion speed be comparable for neutron scattering experiments to be probe atomic diffusion?

scattering neutrons diffusion
Apr 26 '13 at 16:40 John Rennie 291k
 
1
vote
0
answers
61
views

Possible to write $N$-partite W state as sum of less than $N$ product states?

quantum-information quantum-entanglement
Feb 4 at 15:22 glS 8,513
 
1
vote
0
answers
38
views

Improving classical processors with simulation or optimization on a quantum computer?

simulations quantum-computer optimization
Dec 1 '17 at 1:13 Cort Ammon - Reinstate Monica 29.2k
1
1
vote
1
answer
92
views

What is the correct terminology for a “symplectic covariant” equation?

terminology hamiltonian-formalism covariance
Aug 27 '16 at 18:02 Sean Pohorence 409
 
1
vote
0
answers
25
views

Diffractive peak for high-frequency scattering from a sphere with small index of refraction?

optics refraction diffraction
May 23 '16 at 16:35 Jess Riedel 2,758
 
1
vote
0
answers
44
views

Canonical treatment of thermalization of two gases at different temperatures

statistical-mechanics scattering non-equilibrium
Sep 21 '15 at 20:53 Jess Riedel 2,758
3
1
vote
0
answers
302
views

Is there a known generalization of the Schmidt decomposition based on a maximal set of “locally recorded branches”?

mathematical-physics quantum-information entropy quantum-entanglement
Sep 28 '13 at 15:57 Community♦ 1
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