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Add n_qubits option to MultiformOperator compress function #209

Merged
merged 3 commits into from
Sep 12, 2022
Merged

Add n_qubits option to MultiformOperator compress function #209

merged 3 commits into from
Sep 12, 2022

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JamesB-1qbit
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The following code

from tangelo.molecule_library import mol_H4_sto3g
from tangelo.toolboxes.operators.taper_qubits import QubitTapering
from tangelo.toolboxes.operators import QubitOperator
from tangelo.toolboxes.qubit_mappings.mapping_transform import fermion_to_qubit_mapping

qu_op = fermion_to_qubit_mapping(mol_H4_sto3g.fermionic_hamiltonian, "JW", 8, 4, True, 0)
tapering = QubitTapering(qu_op, 8, 4, 0, "JW", True)
tapered_qu_op = tapering.z2_tapering(QubitOperator("X0 X1 X4 X5", 1), 8)

raised an IndexError on the last line.

This small fix adds an n_qubits option for MultiformOperator.compress and utilizes it in do_taper.

ValentinS4t1qbit
ValentinS4t1qbit approved these changes Sep 12, 2022
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Thank you james !

@ValentinS4t1qbit ValentinS4t1qbit merged commit 172084f into sandbox-quantum:develop Sep 12, 2022
ValentinS4t1qbit added a commit that referenced this pull request Nov 9, 2022
@github-actions @ValentinS4t1qbit
@alexfleury-sb @JamesB-1qbit @MPCoons @elloyd-1qbit @KrzysztofB-1qbit @RudiP4t1qbit @web-flow @jjgoings
New release v0.3.3 into main (#248)
e985661 
* Formula for estimating n_measurements for exp value to given accuracy updated with simpler form. (#192)
* Fix operator_expectation bug qith qubit operator / hamiltonian. (#191)
* iqcc ilc solver fork (#179)
* Make circuit iterable (#194)
* copy method for circuits + get_resources adjusted for some variations of VQE + invertible swap gate fix (#193)
* Release guide for project maintainers + version string (#195)
* Notebook: Important aspects of QChem modelling for QComputing (#199)
* Notebooks enabled for Google colab ("No local install" needed) (#198)
* Docker fix (#200)
* Excited states (#197)
* Translation function for qubit operators (#196)
* c2v axis definition changed (#205)
* Bidirectional conversion for Qiskit quantum circuits (#203)
* QEMISTClientConnection class (#207)
* Add n_qubits option to MultiformOperator compress function (#209)
* Quantum Signal Processing time-evolution (#204)
* added even trotter order > 2 (#210)
* Fixed number of qubits with scBK in ADAPT. (#214)
* Export coverage output file in github actions (#158)
* JKMN vector prep should return np array of int. (#215)
* Support for additional IonQ gates (#212)
* Remove unused n_min_orbitals attribute. (#218)
* Change JKMN Majorana definition so mapped Hamiltonian is real (#219)
* Relaxing condition fot iQCC-ILC test. (#221)
* Histogram class (#217)
* Compute energy from RDMs with FermionOperator (#220)
* IonQConnection: control update prints / verbosity. (#225)
* Refactor simulator (#213)
* added __repr__ method to Gate (#229)
* New bidirectional circuit translation functions and interface (#223)
* Add circuit.depth() in get_resources methods (#235)
* Variance and standard error of an expectation value (#238)
* VQESolver cleanup (#230)
* TETRIS-ADAPT-VQE (#241)
* TETRISADAPTSolver implementation + #224 fix
* Trotter order and active electrons for (i)QCC (#234)
* Symmetry post-selection (#232)
* Qiskit runtime integration (IBM quantum only) (#222)
* Add multi-control support for trotterization (#244)
* Compatibility with new QCloud outputs. (#246)
* Deprecate Simulator, introduce get_backend as replacement (#245)
* compute_rdms function (#228)
* Expanded FermionOperator attributes, defined logical and mathematical operations on it (add, mul, eq, etc)
* Bumping Tangelo version number in _version.py
* Update CHANGELOG.md

Co-authored-by: Valentin Senicourt <41597680+ValentinS4t1qbit@users.noreply.github.com>
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: AlexandreF-1qbit <76115575+AlexandreF-1qbit@users.noreply.github.com>
Co-authored-by: James Brown <james.brown@1qbit.com>
Co-authored-by: JamesB-1qbit <84878946+JamesB-1qbit@users.noreply.github.com>
Co-authored-by: MPCoons <84400409+MPCoons@users.noreply.github.com>
Co-authored-by: elloyd-1qbit <58313607+elloyd-1qbit@users.noreply.github.com>
Co-authored-by: KrzysztofB-1qbit <86750444+KrzysztofB-1qbit@users.noreply.github.com>
Co-authored-by: Rudi Plesch <rudi.plesch@1qbit.com>
Co-authored-by: GitHub Actions <noreply@github.com>
Co-authored-by: Valentin Senicourt <valentin.senicourt@1qbit.com>
Co-authored-by: Joshua Goings <3915169+jjgoings@users.noreply.github.com>
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@alexfleury-sb alexfleury-sb alexfleury-sb approved these changes

@ValentinS4t1qbit ValentinS4t1qbit ValentinS4t1qbit approved these changes

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@JamesB-1qbit @ValentinS4t1qbit @alexfleury-sb