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7 papers · 2 filters
On the approximability of random-hypergraph MAX-3-XORSAT problems with quantum algorithms
Eliot Kapit, Brandon A. Barton, Sean Feeney +5
A canonical feature of the constraint satisfaction problems in NP is approximation hardness, where in the worst case, finding sufficient-quality approximate solutions is exponentia…
Simple and general unitarity conserving numerical real time propagators of time dependent Schrödinger equation based on Magnus expansion
Taner M. Ture, Seogjoo J. Jang
Magnus expansion (ME) provides a general way to expand the real-time propagator of a time-dependent Hamiltonian within the exponential such that the unitarity is satisfied at any o…
Simulating polaritonic ground states on noisy quantum devices
Mohammad Hassan, Fabijan Pavošević, Derek S. Wang +1
The recent advent of quantum algorithms for noisy quantum devices offers a new route toward simulating strong light-matter interactions of molecules in optical cavities for polarit…
Ab initio calculations of quantum light-matter interactions in general electromagnetic environments
Mark Kamper Svendsen, Kristian Sommer Thygesen, Angel Rubio +1
The emerging field of strongly coupled light-matter systems has drawn significant attention in recent years due to the prospect of altering physical and chemical properties of mole…
Modified Fermi's golden rule rate expressions
Seogjoo J. Jang, Young Min Rhee
Fermi's golden rule (FGR) serves as the basis for many expressions of spectroscopic observables and quantum transition rates. The utility of FGR has been demonstrated through decad…
Analysis of Dirac exceptional points and their isospectral Hermitian counterparts
Jose H. D. Rivero, Liang Feng, Li Ge
Recently, a Dirac exceptional point (EP) was reported in a non-Hermitian system. Unlike a Dirac point in Hermitian systems, this Dirac EP has coalesced eigenstates in addition to t…