Results 1 to 10 of about 244,088 (139)

Universality of Phases in QCD and QCD-like Theories

Journal of High Energy Physics, 2012
We argue that the whole or the part of the phase diagrams of QCD and QCD-like theories should be universal in the large-N_c limit through the orbifold equivalence. The whole phase diagrams, including the chiral phase transitions and the BEC-BCS crossover
Masanori Hanada, Naoki Yamamoto
exaly   +3 more sources

Topologically protected vortex knots and links

Communications Physics, 2022
Ordered materials, such as liquid crystals and Bose-Einstein condensates, support topological vortices, which are analogous to vortices in water, but have qualitatively different properties.
Toni Annala, Roberto Zamora-Zamora, Mikko Möttönen   +2 more
doaj   +1 more source

Microwave response of a metallic superconductor subject to a high-voltage gate electrode

Scientific Reports, 2022
Processes that lead to the critical-current suppression and change of impedance of a superconductor under the application of an external voltage is an active area of research, especially due to various possible technological applications.
Giacomo Catto, Wei Liu, Suman Kundu, Valtteri Lahtinen, Visa Vesterinen, Mikko Möttönen   +5 more
doaj   +1 more source

Unimon qubit

Nature Communications, 2022
While transmon is the most widely used superconducting qubit, the search for alternative qubit designs with improved characteristic is ongoing. Hyyppä et al.
Eric Hyyppä, Suman Kundu, Chun Fai Chan, András Gunyhó, Juho Hotari, David Janzso, Kristinn Juliusson, Olavi Kiuru, Janne Kotilahti, Alessandro Landra, Wei Liu, Fabian Marxer, Akseli Mäkinen, Jean-Luc Orgiazzi, Mario Palma, Mykhailo Savytskyi, Francesca Tosto, Jani Tuorila, Vasilii Vadimov, Tianyi Li, Caspar Ockeloen-Korppi, Johannes Heinsoo, Kuan Yen Tan, Juha Hassel, Mikko Möttönen   +24 more
doaj   +1 more source

Single-junction quantum-circuit refrigerator

AIP Advances, 2022
We propose a quantum-circuit refrigerator (QCR) based on photon-assisted quasiparticle tunneling through a single normal-metal–insulator–superconductor (NIS) junction.
V. Vadimov, A. Viitanen, T. Mörstedt, T. Ala-Nissila, M. Möttönen   +4 more
doaj   +1 more source

Progress on QCD properties in strong magnetic fields from lattice QCD

He jishu, 2023
We review the current status of quantum chromodynamics (QCD) properties in strong magnetic fields from lattice QCD. After a general introduction, we briefly present the implementation of a background magnetic field onto a lattice and discuss the recent ...
DING Hengtong, LI Shengtai, LIU Junhong
doaj   +1 more source

Instanton, Monopole Condensation and Confinement [PDF]

, 1997
The confinement mechanism in the nonperturbative QCD is studied in terms of topological excitation as QCD-monopoles and instantons. In the 't Hooft abelian gauge, QCD is reduced into an abelian gauge theory with monopoles, and the QCD vacuum can be ...
't Hooft, A. Tanaka, Brandstater, Brower, Di Giacomo, Ezawa, Ezawa, Fukushima, H. Ichie, H. Suganuma, Ichie, Ichie, Kitahara, M. Fukushima, Miyamura, Nambu, Polikarpov, Suganuma, Suganuma, Suganuma, Suganuma, Suganuma, Suganuma, Thurner, Woloshyn   +24 more
core   +2 more sources

Observation of an Alice ring in a Bose–Einstein condensate

Nature Communications, 2023
Monopoles and vortices are fundamental topological excitations that appear in physical systems spanning enormous scales of size and energy, from the vastness of the early universe to tiny laboratory droplets of nematic liquid crystals and ultracold gases.
Alina Blinova, Roberto Zamora-Zamora, Tuomas Ollikainen, Markus Kivioja, Mikko Möttönen, David S. Hall   +5 more
doaj   +1 more source

Application of machine learning to the study of QCD transition in heavy ion collisions

He jishu, 2023
In high-energy heavy ion collisions, quarks and gluons are released from the colliding nucleus to form a new state of nuclear matter called deconfined quark gluon plasma (QGP). To study the transition from normal nuclear matter or hadron resonance gas to
LI Fupeng, PANG Longgang, WANG Xinnian
doaj   +1 more source

Thoughts about the utility of perturbative QCD in the cores of neutron stars – contribution to a roundtable discussion on neutron stars and QCD [PDF]

EPJ Web of Conferences, 2022
In this contribution, I discuss the utility that perturbative QCD offers in studying the matter in the cores of neutron stars. I discuss the reasons why perturbative QCD can constrain the equation of state at densities far below the densities where we ...
Kurkela Aleksi
doaj   +1 more source