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Jess Riedel

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22 Questions

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

Jun 4 '14 at 17:48 user47505 232

votes

answers

551

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 177

votes

answers

509

views

Nonequilibrium thermodynamics in a Boltzmann picture

thermodynamics statistical-mechanics fluctuation-dissipation

Jun 11 '14 at 20:38 Bubble 1,456

votes

answer

248

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 321

votes

answer

221

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

votes

answer

589

views

What are the strongest sources of collimated neutrons and protons?

particle-physics protons neutrons accelerator-physics

Jun 6 at 5:52 Rob 1,578

votes

answers

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 12.9k

votes

answer

views

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

classical-mechanics hamiltonian-formalism chaos-theory

May 18 at 19:16 Jess Riedel 1,848

votes

answers

views

What are the requirements on conditional unitaries for overcomplete bases?

quantum-information quantum-entanglement decoherence

Jan 26 at 20:03 Emilio Pisanty 79.2k

votes

answer

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

votes

answer

664

views

Reasonable to expect Moore's law for quantum computing?

quantum-information quantum-computer

Feb 4 at 22:45 AccidentalFourierTransform 24k

votes

answers

104

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♦ 98.2k

votes

answers

views

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

radiation scattering

May 12 '15 at 0:55 Jess Riedel 1,848

votes

answer

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 1,848

votes

answer

226

views

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

quantum-mechanics quantum-information terminology quantum-optics

Jun 10 '14 at 4:19 Jess Riedel 1,848

votes

answers

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♦ 98.2k

votes

answer

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 265k

vote

answers

views

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

simulations quantum-computer optimization

Dec 1 at 1:13 Cort Ammon 22.2k

vote

answer

views

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

terminology hamiltonian-formalism covariance

Aug 27 '16 at 18:02 Sean Pohorence 411

vote

answers

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 1,848

vote

answers

views

Canonical treatment of thermalization of two gases at different temperatures

statistical-mechanics scattering non-equilibrium

Sep 21 '15 at 20:53 Jess Riedel 1,848

vote

answers

268

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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22 Questions

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

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

Nonequilibrium thermodynamics in a Boltzmann picture

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

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

What are the strongest sources of collimated neutrons and protons?

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

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

What are the requirements on conditional unitaries for overcomplete bases?

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

Reasonable to expect Moore's law for quantum computing?

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

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

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

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

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

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

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

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

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

Canonical treatment of thermalization of two gases at different temperatures

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