Zobrazeno 1 - 10
of 410
pro vyhledávání: '"Schmitteckert, P."'
Autor:
Tripathi, Anshuman, Gerken, Felix, Schmitteckert, Peter, Thorwart, Michael, Trif, Mircea, Posske, Thore
Easy-plane quantum magnets are strikingly similar to superconductors, allowing for spin supercurrent and an effective superconducting phase stemming from their $U(1)$ rotation symmetry around the $z$-axis. We uncover a generalized fractional Josephso
Externí odkaz:
http://arxiv.org/abs/2408.04008
Autor:
Shirazi, Reza G., Schoenauer, Benedikt M., Schmitteckert, Peter, Marthaler, Michael, Rybkin, Vladimir
We introduce analysis of orbital parities as a concept and a tool for understanding radicals. Based on fundamental reduced one- and two-electron density matrices, our approach allows us to evaluate a total measure of radical character and provides sp
Externí odkaz:
http://arxiv.org/abs/2404.18787
We present important use cases and limitations when considering results obtained from Cluster Perturbation Theory (CPT). CPT combines the solutions of small individual clusters of an infinite lattice system with the Bloch theory of conventional band
Externí odkaz:
http://arxiv.org/abs/2309.14035
Autor:
Philipp Romero, Astrid Burger, Erica Wennberg, Stefanie Schmitteckert, Stefan Holland-Cunz, Constantin Schwab, Patrick Günther
Publikováno v:
Children, Vol 11, Iss 4, p 428 (2024)
Introduction: Hirschsprung disease (HD) manifests as a developmental anomaly affecting the enteric nervous system, where there is an absence of ganglion cells in the lower part of the intestine. This deficiency leads to functional blockages within th
Externí odkaz:
https://doaj.org/article/a800a25b426a4a939546ebe92050d432
Autor:
Arute, Frank, Arya, Kunal, Babbush, Ryan, Bacon, Dave, Bardin, Joseph C., Barends, Rami, Bengtsson, Andreas, Boixo, Sergio, Broughton, Michael, Buckley, Bob B., Buell, David A., Burkett, Brian, Bushnell, Nicholas, Chen, Yu, Chen, Zijun, Chen, Yu-An, Chiaro, Ben, Collins, Roberto, Cotton, Stephen J., Courtney, William, Demura, Sean, Derk, Alan, Dunsworth, Andrew, Eppens, Daniel, Eckl, Thomas, Erickson, Catherine, Farhi, Edward, Fowler, Austin, Foxen, Brooks, Gidney, Craig, Giustina, Marissa, Graff, Rob, Gross, Jonathan A., Habegger, Steve, Harrigan, Matthew P., Ho, Alan, Hong, Sabrina, Huang, Trent, Huggins, William, Ioffe, Lev B., Isakov, Sergei V., Jeffrey, Evan, Jiang, Zhang, Jones, Cody, Kafri, Dvir, Kechedzhi, Kostyantyn, Kelly, Julian, Kim, Seon, Klimov, Paul V., Korotkov, Alexander N., Kostritsa, Fedor, Landhuis, David, Laptev, Pavel, Lindmark, Mike, Lucero, Erik, Marthaler, Michael, Martin, Orion, Martinis, John M., Marusczyk, Anika, McArdle, Sam, McClean, Jarrod R., McCourt, Trevor, McEwen, Matt, Megrant, Anthony, Mejuto-Zaera, Carlos, Mi, Xiao, Mohseni, Masoud, Mruczkiewicz, Wojciech, Mutus, Josh, Naaman, Ofer, Neeley, Matthew, Neill, Charles, Neven, Hartmut, Newman, Michael, Niu, Murphy Yuezhen, O'Brien, Thomas E., Ostby, Eric, Pató, Bálint, Petukhov, Andre, Putterman, Harald, Quintana, Chris, Reiner, Jan-Michael, Roushan, Pedram, Rubin, Nicholas C., Sank, Daniel, Satzinger, Kevin J., Smelyanskiy, Vadim, Strain, Doug, Sung, Kevin J., Schmitteckert, Peter, Szalay, Marco, Tubman, Norm M., Vainsencher, Amit, White, Theodore, Vogt, Nicolas, Yao, Z. Jamie, Yeh, Ping, Zalcman, Adam, Zanker, Sebastian
Strongly correlated quantum systems give rise to many exotic physical phenomena, including high-temperature superconductivity. Simulating these systems on quantum computers may avoid the prohibitively high computational cost incurred in classical app
Externí odkaz:
http://arxiv.org/abs/2010.07965
Publikováno v:
Phys. Rev. B 105 (2022) 075116
We present results of the impurity local density of states of the interacting resonant level model at zero temperature. We concentrate on low-energy properties and predominantly use the numerical renormalisation group technique. As interaction is inc
Externí odkaz:
http://arxiv.org/abs/2010.04613
Autor:
Schmitteckert, Peter
We present an extension of reverse engineered Kohn-Sham potentials from a density matrix renormalization group calculation towards the construction of a density functional theory functional via deep learning. Instead of applying machine learning to t
Externí odkaz:
http://arxiv.org/abs/2008.07923
Autor:
Joost, J. -P., Schlünzen, N., Hese, S., Bonitz, M., Verdozzi, C., Schmitteckert, P., Hopjan, M.
Publikováno v:
Contributions to Plasma Physics 61, e202000220 (2021)
The energy gap of correlated Hubbard clusters is well studied for one-dimensional systems using analytical methods and density-matrix-renormalization-group (DMRG) simulations. Beyond 1D, however, exact results are available only for small systems by
Externí odkaz:
http://arxiv.org/abs/2005.07651
Publikováno v:
Phys. Rev. B 101, 045115 (2020)
The large-scale dynamics of quantum integrable systems is often dominated by ballistic modes due to the existence of stable quasi-particles. We here consider as an archetypical example for such a system the spin-$\frac{1}{2}$ XXX Heisenberg chain tha
Externí odkaz:
http://arxiv.org/abs/1908.11432
Publikováno v:
Phys. Rev. Research 1, 022006 (2019)
We study the time evolving currents flowing in an interacting, ring-shaped nanostructure after a bias voltage has been switched on. The source-to-drain current exhibits the expected relaxation towards its quasi-static equilibrium value at a rate $\Ga
Externí odkaz:
http://arxiv.org/abs/1903.01721