% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Zeuch:888362, author = {Zeuch, D. and Bonesteel, N. E.}, title = {{E}fficient two-qubit pulse sequences beyond {CNOT}}, journal = {Physical review / B}, volume = {102}, number = {7}, issn = {2469-9950}, address = {Woodbury, NY}, publisher = {Inst.}, reportid = {FZJ-2020-04868}, pages = {075311}, year = {2020}, abstract = {We design efficient controlled-rotation gates with arbitrary angle acting on three-spin encoded qubits for exchange-only quantum computation. Two pulse sequence constructions are given. The first is motivated by an analytic derivation of the efficient Fong-Wandzura sequence for an exact cnot gate. This derivation, briefly reviewed here, is based on elevating short sequences of swap pulses to an entangling two-qubit gate. To go beyond cnot, we apply a similar elevation to a modified short sequence consisting of swaps and one pulse of arbitrary duration. This results in two-qubit sequences that carry out controlled-rotation gates of arbitrary angle. The second construction streamlines a class of arbitrary cphase gates established earlier. Both constructions are based on building two-qubit sequences out of subsequences with special properties that render each step of the construction analytically tractable.}, cin = {PGI-11 / PGI-2}, ddc = {530}, cid = {I:(DE-Juel1)PGI-11-20170113 / I:(DE-Juel1)PGI-2-20110106}, pnm = {144 - Controlling Collective States (POF3-144)}, pid = {G:(DE-HGF)POF3-144}, typ = {PUB:(DE-HGF)16}, UT = {WOS:000562629100003}, doi = {10.1103/PhysRevB.102.075311}, url = {https://juser.fz-juelich.de/record/888362}, }