Universal Rephasing Dynamics after a Quantum Quench via Sudden Coupling of Two Initially Independent Condensates

Anatoli Polkovnikov; Emanuele G. Dalla Torre; Eugene Demler

RECORD

Universal Rephasing Dynamics after a Quantum Quench via Sudden Coupling of Two Initially Independent Condensates

Emanuele G. Dalla Torre, Eugene Demler, Anatoli Polkovnikov

Quantum Gases · Submitted 21 Nov 2012

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim For weak couplings, the time-evolution of physical observables is predicted to follow universal scaling laws, connecting the short-time dynamics to the long-time non-perturbative regime.

how it is stated · hedged possibility 0.66 read the record →

Comment (0) Read on arXiv ↗

Cite ▾

arXiv ID1211.5145 (version 3)

Pith ID4VLMNN4E, Pith's permanent record of this paper and its review

CitationAnatoli Polkovnikov, Emanuele G. Dalla Torre, Eugene Demler. "Universal Rephasing Dynamics after a Quantum Quench via Sudden Coupling of Two Initially Independent Condensates." arXiv:1211.5145 (2012). https://pith.science/paper/4VLMNN4E

Claim paper

The compiled record

The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.

Open the compiled record

Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 3,619 input tokens, $0.0002 reported.

What the abstract itself states, as probabilities: claims first 0.04 · states limitation 0.14 · human participants 0.01 · controlled comparison 0.04 · randomized assignment 0.01 · states quantitative result 0.07 · compares with prior results 0.08 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v3. Results and the main claim are underlined; show every role.

We consider a quantum quench in which two initially independent condensates are suddenly coupled, and study the subsequent "rephasing" dynamics. For weak couplings, the time-evolution of physical observables is predicted to follow universal scaling laws, connecting the short-time dynamics to the long-time non-perturbative regime. We first present a two-mode model valid in two and three dimensions and then move to one dimension, where the problem is described by a gapped Sine-Gordon theory. Combining analytical and numerical methods, we compute universal time-dependent expectation values, allowing a quantitative comparison with future experiments.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	We consider a quantum quench in which two initially independent condensates are suddenly coupled, and study the subsequent "rephasing" dynamics.	contribution 0.80	0.65	0.08	asserted 0.66
s1	For weak couplings, the time-evolution of physical observables is predicted to follow universal scaling laws, connecting the short-time dynamics to the long-time non-perturbative regime.	result 0.94	0.52	0.64	hedged possibility 0.66
s2	We first present a two-mode model valid in two and three dimensions and then move to one dimension, where the problem is described by a gapped Sine-Gordon theory.	method 0.95	0.83	0.05	asserted 0.99
s3	Combining analytical and numerical methods, we compute universal time-dependent expectation values, allowing a quantitative comparison with future experiments.	contribution 0.59	0.95	0.19	asserted 1.00

What kind of paper the classifier reports this is: theoretical result 1.00 · evidence from simulation or computation 0.63.

What was examined, and what was not

sources read

arXiv listing abstract v3

not examined

full text
figures and tables
references and citing sentences
relations to other papers

levels run

P abstract

not run

S sections
T body sentences
C citations
R cross-paper relations

Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper

Original abstract

We consider a quantum quench in which two initially independent condensates are suddenly coupled, and study the subsequent "rephasing" dynamics. For weak couplings, the time-evolution of physical observables is predicted to follow universal scaling laws, connecting the short-time dynamics to the long-time non-perturbative regime. We first present a two-mode model valid in two and three dimensions and then move to one dimension, where the problem is described by a gapped Sine-Gordon theory. Combining analytical and numerical methods, we compute universal time-dependent expectation values, allowing a quantitative comparison with future experiments.

Human review

How Pith checks papers → · Full audit of this paper →

References

How the literature uses it

10 arXiv papers cite this in 16 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 11 sentences without a confident label

Uses its method or tool 1 paper

Here we apply an alternative approach, the so-called truncated Wigner approximation (TWA) [ref] , giving a slightly different quasi-classical approximation of the phase dynamics.

Non-equilibrium time evolution and rephasing in the quantum sine-Gordon model · Introduction · 1.00

Cites it as background 4 papers

These include semiclassical approximations, such as the mean-field approximation [ref] or the truncated Wigner approximation (TWA) [ref] .

Non-equilibrium time evolution in the sine-Gordon model revisited · Introduction · 0.91
Different types of prethermal and universal dynamics after quenches of quantum many-body systems far out of equilibrium have been studied recently [ref] , many of them in the context of ultracold Bose gases.

Low-energy effective theory of non-thermal fixed points in a multicomponent Bose gas · Introduction · 0.97
Universal scaling far from equilibrium has recently been analyzed for different types of quantum quenches [ref] , see also Refs. [ref] for studies of phase-ordering kinetics in ultracold Bose gases.

Strongly anomalous non-thermal fixed point in a quenched two-dimensional Bose gas · Introduction · 0.86

Discussion

Know something about this paper? Leave a comment, or highlight any passage above to comment on it.