Thermodynamics of a hierarchical mixture of cubes

**phase**

**transitions**in mixtures of incompressible droplets. The model consists of non-overlapping hypercubes in $\mathbb Z^d$ of sidelengths $2^j$, $j\in N_0$. Cubes belong to an admissible set $\mathbb B$ such that if two cubes overlap, then one is contained in the other. Cubes of sidelength $2^j$ have activity $z_j$ and density $\rho_j$. We prove explicit formulas for the pressure and entropy, prove a van-der-Waals type equation of state, and invert the density-activity relations. In addition we explore

**phase**

**transitions**for parameter-dependent activities $z_j(\mu) = \exp( 2^{dj} \mu - E_j)$. We prove a sufficient criterion for absence of

**phase**transition, show that constant energies $E_j\equiv\lambda$ lead to a continuous

**phase**transition, and prove a necessary and sufficient condition for the existence of a first-order

**phase**

**transition**.

8/10 relevant

arXiv

Dynamical **phase** **transitions** in driven-dissipative light-matter systems

**transitions**in a wide variety of driven dissipative systems and is highly pertinent for current experiments. Expand abstract.

**transition**triggered by infinitesimal dissipation in the interpolating Dicke-Tavis-Cummings model. The model describes a ubiquitous light-matter setting using a collection of two-level systems interacting with quantum light trapped in an optical cavity. Harnessing Keldysh's action formalism to compute the response function of the light, we show that the dissipation-induced

**transition**occurs solely in the dynamical fluctuations atop an empty cavity, through stabilization of an excited state of the closed system. Consequently, we reveal that fluctuations flip from being particle-like to hole-like across this

**transition**. This inversion is also accompanied by the behaviour of the Liouvillian eigenvalues akin to exceptional points. Our work forges the way to discovering dynamical

**transitions**in a wide variety of driven dissipative systems and is highly pertinent for current experiments.

8/10 relevant

arXiv

Design of reversible low-field magnetocaloric effect at room temperature in hexagonal MnMX ferromagnets

**transition**is stabilized at high temperature, while the Curie temperature of the orthorhombic

**phase**is reduced to room temperature. Expand abstract.

**transition**. However, the thermal hysteresis and the low sensitivity of the magnetostructural

**transition**to the magnetic field inevitably lead to a sizeable irreversibility of the low-field magnetocaloric effect. In this work, we show an alternative way to realize a reversible low-field magnetocaloric effect in MnMX-based alloys by taking advantage of the second-order

**phase**

**transition**. With introducing Cu into Co in MnCoGe alloy, the martensitic

**transition**is stabilized at high temperature, while the Curie temperature of the orthorhombic

**phase**is reduced to room temperature. As a result, a second-order magnetic

**transition**with negligible thermal hysteresis and a large magnetization change can be observed, enabling a large reversible magnetocaloric effect. By both calorimetric and direct measurements, a reversible adiabatic temperature change of about 1 K is obtained under a field change of 0-1 T at 304 K, which is larger than that obtained in a first-order magnetostructural

**transition**. To get a better insight into the origin of these experimental results, first-principles calculations are carried out to characterize the chemical bonds and the magnetic exchange interaction. Our work provides a new understanding of the MnCoGe alloy and indicates a feasible route to improve the reversibility of the low-field magnetocaloric effect in the MnMX system.

4/10 relevant

arXiv

Universal scaling of the velocity field in crack front propagation

**phase**

**transition**originated by the disorder. Expand abstract.

**phase**

**transition**originated by the disorder. As a result avalanches display universal scalings which are however difficult to characterize in experiments at finite drive. Here we show that the correlation functions of the velocity field along the front allow to extract the critical exponents of the

**transition**and to identify the universality class of the system. We employ these correlations to characterize the universal behavior of the

**transition**in simulations and in an experiment of crack propagation. This analysis is robust, efficient and can be extended to all systems displaying avalanche dynamics.

4/10 relevant

arXiv

Inversion of lattice models from the observations of microscopic degrees of freedom: parameter estimation with uncertainty quantification

**phase**

**transition**, opening new horizons for scientific exploration via high-resolution imaging. Expand abstract.

**phase**

**transition**and perform uncertainty analysis for such reconstructions. This suggests that microscopic observations of materials with sufficiently high precision can provide information on generative physics at temperatures well above corresponding

**phase**transition, opening new horizons for scientific exploration via high-resolution imaging.

4/10 relevant

arXiv

Energy Dependence of Light Nuclei Production in Au+Au Collisions from JAM model

**phase**

**transition**. Based on the coalescence production of light nuclei, we can extract the neutron density fluctuation from the yield ratio of proton ($p$), deuteron ($d$) and triton ($t$), $N_{{p}} \times N_{{t}} / N_{{d}}^{2}$. In this work, we studied the production of proton, deuteron, triton in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5, 7.7, 11.5, 14.5, 19.6, 27, 39, 54.4, 62.4, and 200 GeV from a transport model (JAM model). We presented the energy dependence of rapidity density $dN/dy$, particle ratios ($d/p$, $t/p$, and $t/d$), and the yield ratio of $N_{{p}} \times N_{{t}} / N_{{d}}^{2}$. We found the energy dependence of the yield ratio is flat and cannot describe the non-monotonic trend observed by STAR experiment. This study can be used as a baseline to search for the QCD critical point and/or first order

**phase**

**transition**with light nuclei production in heavy-ion collisions.

4/10 relevant

arXiv

Investigating **Phase** **Transition** and Morphology of Bi-Te Thermoelectric
System

**phase**in a thermoelectric materials can help to improve the efficiency of the material. Being a potential candidate, Bismuth telluride (Bi$_2$Te$_3$) nanoparticles were synthesized via different routes and profiles to optimize its pure single

**phase**. Systematic characterizations were performed with the help of X-ray diffraction, Rietveld refinement, Field effect-Scanning electron microscopy(FE-SEM) for structural and morphological behavior. Rietveld refinement in XRD-data of the samples revealed that only a small amount ($\sim$ 1.6\%) of Bi$_2$Te$_3$ was formed in co-precipitation method, while hydrothermal technique increases this

**phase**with increment in synthesis duration. This work focussed on the

**phase**evolution of Bi$_2$Te$_3$ with increasing synthesis duration time at constant temperature. XRD Rietveld refinement revealed that 84\% pure

**phase**was obtained when sample is synthesized at 150 $^\circ$C for 48 hours by hydrothermal technique. FE-SEM and Energy Dispersive X-ray (EDX) analysis also indicated that impure

**phase**is decreased along with atomic percentage of oxygen from 37\% to 11\% in hydrothermally synthesized sample. The detailed analysis has generalized the growth mechanism in Bi$_2$Te$_3$

**phase**evolution by the diffusion of Bi into Te nanorods to fabricate hexagonal Bi$_2$Te$_3$.

9/10 relevant

arXiv

Magnetised hybrid stars: effects of slow and rapid **phase** **transitions** at
the quark-hadron interface

**phase**

**transitions**occur at the sharp hadron-quark interface. We find that, unlike in the rapid

**transition**scenario, where $\partial M/\partial \epsilon_c < 0$ is a sufficient condition for instability, in the slow

**transition**scenario there exists a connected extended stable branch beyond the maximum mass star, for which $\partial M/\partial \epsilon_c < 0$. Finally, analysing the gravitational mass versus baryon mass relationship, we have calculated the energy released in

**transitions**between stable stellar configurations. We find that the inclusion of the magnetic field and the existence of new stable branches allows the possibility of new channels of

**transitions**that fulfil the energy requirements to explain Gamma Ray Bursts.

9/10 relevant

arXiv

Checkpoint regulation of nuclear Tos4 defines S **phase** arrest in fission yeast

**phase**

**transition**. Expand abstract.

**phase**progression by monitoring nuclear accumulation of the FHA-containing DNA binding protein Tos4, which is expressed in the G1/S

**phase**

**transition**. We use Tos4 localization to distinguish three classes of DNA replication mutants: those that arrest with an apparent 1C DNA content and accumulate Tos4 at the restrictive temperature; those that arrest with an apparent 2C DNA content, that do not accumulate Tos4; and those that proceed into mitosis despite a 1C DNA content, again without Tos4 accumulation. Our data indicate that Tos4 localization in these conditions is responsive to checkpoint kinases, with activation of the Cds1 checkpoint kinase promoting Tos4 retention in the nucleus, and activation of the Chk1 damage checkpoint promoting its turnover. Tos4 localization therefore allows us to monitor checkpoint-dependent activation that responds to replication failure in early versus late S

**phase**.

4/10 relevant

bioRxiv

Uniformly positive correlations in the dimer model and **phase** **transition**
in lattice permutations on $\mathbb{Z}^d$, $d > 2$, via reflection positivity

**phase**

**transition**in the model of lattice permutations, which is related to the quantum Bose gas. More precisely, we consider a self-avoiding walk interacting with lattice permutations and we prove that, in the regime of fully-packed loops, such a walk is `long' and the distance between its end-points grows linearly with the diameter of the box. These results follow from the derivation of an Infrared-ultraviolet bound from a new general probabilistic settings, with coloured loops and walks interacting at sites and walks entering into the system from some `virtual' vertices.

10/10 relevant

arXiv