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Intervalley mixing between conduction-band states in low-dimensional Si/SiGe heterostructures induces splitting between nominally degenerate energy levels. The symmetric double-valley effective mass approximation and the empirical…

Mesoscale and Nanoscale Physics · Physics 2009-07-27 A. Valavanis , Z. Ikonić , R. W. Kelsall

We study some effects arising from periodic modulation of the asymmetry and the barrier height of a two-well potential containing a Bose-Einstein condensate. At certain modulation frequencies the system exhibits resonances, which may lead…

Quantum Physics · Physics 2009-11-10 H. L. Haroutyunyan , G. Nienhuis

We investigate the intersubband spin-density-excitation spectrum of a double quantum well in a low-density symmetry-broken phase with interwell antiferromagnetic correlations. This spectrum is related to the intensity measured in…

Condensed Matter · Physics 2009-10-28 R. J. Radtke , S. Das Sarma

We study few-boson tunneling in a one-dimensional double well with a spatially modulated interaction. The dynamics changes from Rabi oscillations in the non-interacting case to a highly suppressed tunneling for intermediate coupling…

Quantum Gases · Physics 2010-10-27 Budhaditya Chatterjee , Ioannis Brouzos , Sascha Zöllner , Peter Schmelcher

In this work, we have theoretically investigated the intermixing effect in highly strained In$_{0.3}$Ga$_{0.7}$As/GaAs quantum well (QW) taking into consideration the composition profile change resulting from in-situ indium surface…

Mesoscale and Nanoscale Physics · Physics 2015-10-23 M. Souaf , M. Baira , H. Maaref , B. Ilahi

We provide a novel sharp-interface analysis via Gamma-convergence for a non-local and non-homogeneous diffuse-interface model for phase transitions, featuring an interplay between a non-local interaction kernel and a spatially dependent…

Analysis of PDEs · Mathematics 2025-04-24 Elisa Davoli , Emanuele Tasso

We study the magnetic phases of two coupled two-dimensional electron gases in order to determine under what circumstances these phases may occur in real semiconductor quantum wells and what the experimental properties of the broken-symmetry…

Condensed Matter · Physics 2007-05-23 P. I. Tamborenea , R. J. Radtke , S. Das Sarma

We study a one-dimensional mixture of two-color fermions and scalar bosons at the hardcore limit, focusing on the effect that the intraspecies next-neighbor interactions have on the zero-temperature ground state of the system for different…

Quantum Gases · Physics 2025-01-22 F. Gómez-Lozada , R. Franco , J. Silva-Valencia

The non-linear response of a beam splitter to the coincident arrival of interacting particles enables numerous applications in quantum engineering and metrology yet poses considerable challenge to achieve focused interactions on the…

We perform a nonlocal double-slit interference experiment with pseudothermal light. The experimental result exhibits a typical double-slit interference fringe in the intensity correlation measurement, in agreement with the theoretical…

Quantum Physics · Physics 2007-05-23 Lu Gao , Jun Xiong , Lu-Fang Lin , Wei Wang , Su-Heng Zhang , Kaige Wang

A recent study have shown that it is possible to have enhancement, in contrast to an expected suppression, in tunneling density of states (TDOS) in a Luttinger liquid (LL) which is solely driven by the non-local density-density…

Mesoscale and Nanoscale Physics · Physics 2026-05-01 Amulya Ratnakar , Sourin Das

The defect induced interfacial states are created in an atomically thin two-dimensional molybdenum disulfide channel by underlying a narrow pattern of a graphene layer in a field effect transistor. Nondestructive method for the generation…

Mesoscale and Nanoscale Physics · Physics 2021-02-03 Rahul Tripathi , Pritam Bhattacharyya , Alok Shukla , Abha Misra

In this paper we revisit the derivation of a nonlocal interfacial Hamiltonian model for systems with short-ranged intermolecular forces. Starting from a microscopic Landau-Ginzburg-Wilson Hamiltonian with a double parabola potential, we…

Soft Condensed Matter · Physics 2018-07-10 Jose M. Romero-Enrique , Alessio Squarcini , Andrew O. Parry , Paul M. Goldbart

In this paper, effect of dipole-dipole interactions on nonlinear optical properties of the system of randomly located semiconductor nanoparticles embedded in bulk dielectric matrix is investigated. This effect results from the nonzero…

Mesoscale and Nanoscale Physics · Physics 2013-09-12 Andrey V. Panov

We investigate the ground state properties and tunneling dynamics of ultracold dipolar bosons in a one dimensional triple well trap from a few-body ab-initio perspective. Our focus is primarily on the distinctive features of dipolar bosons…

Quantum Gases · Physics 2015-06-12 Budhaditya Chatterjee , Ioannis Brouzos , Lushuai Cao , Peter Schmelcher

The subtle interplay between quantum statistics and interactions is at the origin of many intriguing quantum phenomena connected to superfluidity and quantum magnetism. The controlled setting of ultracold quantum gases is well suited to…

Nonlinear metasurfaces based on coupling a locally enhanced plasmonic response to intersubband transitions of n-doped multi-quantum-wells (MQWs) have recently provided second-order susceptibilities orders of magnitude larger than any other…

Mesoscale and Nanoscale Physics · Physics 2015-09-25 J. S. Gomez-Diaz , M. Tymchenko , J. Lee , M. A. Belkin , Andrea Alù

Interference is fundamental to wave dynamics and quantum mechanics. The quantum wave properties of particles are exploited in metrology using atom interferometers, allowing for high-precision inertia measurements [1, 2]. Furthermore, the…

Quantum Gases · Physics 2010-09-14 Christian Gross , Tilman Zibold , Eike Nicklas , Jerome Esteve , Markus K. Oberthaler

Interferometry with ultracold atoms promises the possibility of ultraprecise and ultrasensitive measurements in many fields of physics, and is the basis of our most precise atomic clocks. Key to a high sensitivity is the possibility to…

Quantum Gases · Physics 2010-07-08 Julian Grond , Joerg Schmiedmayer , Ulrich Hohenester

The recent discovery of high-temperature superconductivity in pressurized bilayer nickelate La$_3$Ni$_2$O$_7$ and its thin films has generated significant interest in uncovering the underlying pairing mechanisms and correlated electronic…

Superconductivity · Physics 2025-08-20 Jun Zhan , Congcong Le , Xianxin Wu , Jiangping Hu