def test_ucc_energy(self):
noa = self.no
nob = self.no
nva = self.nv
nvb = self.nv
na = noa + nva
nb = nob + nvb
no = noa + nob
nv = nva + nvb
Faa = test_utils.make_random_F(noa, nva)
Fbb = test_utils.make_random_F(nob, nvb)
# Direct integrals over a,b orbitals
Ia = test_utils.make_random_I_anti(noa, nva)
Ib = test_utils.make_random_I_anti(nob, nvb)
Iabab = test_utils.make_random_Ifull_gen(noa, nva, nob, nvb, noa, nva,
nob, nvb)
# Full antisymmetric spin-orbital tensor
I = spin_utils.int_to_spin2(Ia, Ib, Iabab, noa, nva, nob, nvb)
F = spin_utils.F_to_spin(Faa, Fbb, noa, nva, nob, nvb)
# initial T
T1a, T1b = test_utils.make_random_T1_spatial(noa, nva, nob, nvb)
T2aa, T2ab, T2bb = test_utils.make_random_T2_spatial(
noa, nva, nob, nvb)
T1 = spin_utils.T1_to_spin(T1a, T1b, noa, nva, nob, nvb)
T2 = spin_utils.T2_to_spin(T2aa, T2ab, T2bb, noa, nva, nob, nvb)
E_ref = cc_energy.cc_energy(T1, T2, F.ov, I.oovv)
E_out = cc_energy.ucc_energy((T1a, T1b), (T2aa, T2ab, T2bb), Faa.ov,
Fbb.ov, Ia.oovv, Ib.oovv, Iabab.oovv)
s = abs(E_ref - E_out) < self.thresh
err = "Error in ucc_energy"
self.assertTrue(s, err)
def test_uccsd_lambda(self):
noa = self.no
nob = self.no
nva = self.nv
nvb = self.nv
na = noa + nva
nb = nob + nvb
no = noa + nob
nv = nva + nvb
Fa = test_utils.make_random_F(noa, nva)
Fb = test_utils.make_random_F(nob, nvb)
# Direct integrals over a,b orbitals
Ia = test_utils.make_random_I_anti(noa, nva)
Ib = test_utils.make_random_I_anti(nob, nvb)
Iabab = test_utils.make_random_Ifull_gen(noa, nva, nob, nvb, noa, nva,
nob, nvb)
# Full antisymmetric spin-orbital tensor
I = spin_utils.int_to_spin2(Ia, Ib, Iabab, noa, nva, nob, nvb)
F = spin_utils.F_to_spin(Fa, Fb, noa, nva, nob, nvb)
# initial T
T1a, T1b = test_utils.make_random_T1_spatial(noa, nva, nob, nvb)
T2aa, T2ab, T2bb = test_utils.make_random_T2_spatial(
noa, nva, nob, nvb)
T1 = spin_utils.T1_to_spin(T1a, T1b, noa, nva, nob, nvb)
T2 = spin_utils.T2_to_spin(T2aa, T2ab, T2bb, noa, nva, nob, nvb)
# initial L
L1aold, L1bold = test_utils.make_random_T1_spatial(nva, noa, nvb, nob)
L2aaold, L2abold, L2bbold = test_utils.make_random_T2_spatial(
nva, noa, nvb, nob)
L1old = spin_utils.T1_to_spin(L1aold, L1bold, nva, noa, nvb, nob)
L2old = spin_utils.T2_to_spin(L2aaold, L2abold, L2bbold, nva, noa, nvb,
nob)
# Get updated Lambda using spin orbitals
L1_ref, L2_ref = cc_equations.ccsd_lambda_opt(F, I, L1old, L2old, T1,
T2)
# Get updated Lambda using unrestricted code
M1, M2 = cc_equations.uccsd_lambda_opt(Fa, Fb, Ia, Ib, Iabab,
(L1aold, L1bold),
(L2aaold, L2abold, L2bbold),
(T1a, T1b), (T2aa, T2ab, T2bb))
L1a, L1b = M1
L2aa, L2ab, L2bb = M2
L1 = spin_utils.T1_to_spin(L1a, L1b, nva, noa, nvb, nob)
L2 = spin_utils.T2_to_spin(L2aa, L2ab, L2bb, nva, noa, nvb, nob)
z1 = numpy.linalg.norm(L1 - L1_ref) / numpy.sqrt(L1.size)
z2 = numpy.linalg.norm(L2 - L2_ref) / numpy.sqrt(L2.size)
s1 = z1 < self.thresh
s2 = z2 < self.thresh
e1 = "Error in UCCSD L1"
e2 = "Error in UCCSD L2"
self.assertTrue(s1, e1)
self.assertTrue(s2, e2)
def test_uccsd(self):
noa = self.no
nob = self.no
nva = self.nv
nvb = self.nv
na = noa + nva
nb = nob + nvb
no = noa + nob
nv = nva + nvb
Faa = test_utils.make_random_F(noa, nva)
Fbb = test_utils.make_random_F(nob, nvb)
# Direct integrals over a,b orbitals
Ia = test_utils.make_random_I_anti(noa, nva)
Ib = test_utils.make_random_I_anti(nob, nvb)
I_abab = test_utils.make_random_Ifull_gen(noa, nva, nob, nvb, noa, nva,
nob, nvb)
# Full antisymmetric spin-orbital tensor
I = spin_utils.int_to_spin2(Ia, Ib, I_abab, noa, nva, nob, nvb)
F = spin_utils.F_to_spin(Faa, Fbb, noa, nva, nob, nvb)
# initial T
T1a, T1b = test_utils.make_random_T1_spatial(noa, nva, nob, nvb)
T2aa, T2ab, T2bb = test_utils.make_random_T2_spatial(
noa, nva, nob, nvb)
T1 = spin_utils.T1_to_spin(T1a, T1b, noa, nva, nob, nvb)
T2 = spin_utils.T2_to_spin(T2aa, T2ab, T2bb, noa, nva, nob, nvb)
# Update with spin orbitals
S1ref, S2ref = cc_equations.ccsd_stanton(F, I, T1, T2)
# Update with UCCSD
S1, S2 = cc_equations.uccsd_stanton(Faa, Fbb, Ia, Ib, I_abab,
(T1a, T1b), (T2aa, T2ab, T2bb))
S1a, S1b = S1
S2aa, S2ab, S2bb = S2
S1 = spin_utils.T1_to_spin(S1a, S1b, noa, nva, nob, nvb)
S2 = spin_utils.T2_to_spin(S2aa, S2ab, S2bb, noa, nva, nob, nvb)
z1 = numpy.linalg.norm(S1 - S1ref) / numpy.sqrt(S1.size)
z2 = numpy.linalg.norm(S2 - S2ref) / numpy.sqrt(S2.size)
s1 = z1 < self.thresh
s2 = z2 < self.thresh
e1 = "Error in UCCSD T1"
e2 = "Error in UCCSD T2"
self.assertTrue(s1, e1)
self.assertTrue(s2, e2)
def test_u2rdm(self):
noa = 3
nva = 5
nob = 2
nvb = 6
thresh = 1e-14
# use unrestricted one-particle property
Aa = test_utils.make_random_I_anti(noa, nva)
Ab = test_utils.make_random_I_anti(nob, nvb)
Aab = test_utils.make_random_Ifull_gen(
noa, nva, nob, nvb, noa, nva, nob, nvb)
Atot = spin_utils.int_to_spin2(Aa, Ab, Aab, noa, nva, nob, nvb)
# get unrestricted and general amplitudes
T1a, T1b = test_utils.make_random_T1_spatial(noa, nva, nob, nvb)
T2aa, T2ab, T2bb \
= test_utils.make_random_T2_spatial(noa, nva, nob, nvb)
L1a, L1b = test_utils.make_random_T1_spatial(nva, noa, nvb, nob)
L2aa, L2ab, L2bb \
= test_utils.make_random_T2_spatial(nva, noa, nvb, nob)
T1 = spin_utils.T1_to_spin(T1a, T1b, noa, nva, nob, nvb)
L1 = spin_utils.T1_to_spin(L1a, L1b, nva, noa, nvb, nob)
T2 = spin_utils.T2_to_spin(T2aa, T2ab, T2bb, noa, nva, nob, nvb)
L2 = spin_utils.T2_to_spin(L2aa, L2ab, L2bb, nva, noa, nvb, nob)
# make general pieces of 2-rdm
Pijab = L2.copy()
Pciab = cc_equations.ccsd_2rdm_ciab(T1, T2, L1, L2)
Pjkai = cc_equations.ccsd_2rdm_jkai(T1, T2, L1, L2)
Pcdab = cc_equations.ccsd_2rdm_cdab(T1, T2, L1, L2)
Pbjai = cc_equations.ccsd_2rdm_bjai(T1, T2, L1, L2)
Pklij = cc_equations.ccsd_2rdm_klij(T1, T2, L1, L2)
Pbcai = cc_equations.ccsd_2rdm_bcai(T1, T2, L1, L2)
Pkaij = cc_equations.ccsd_2rdm_kaij(T1, T2, L1, L2)
Pabij = cc_equations.ccsd_2rdm_abij(T1, T2, L1, L2)
# make unrestricted RDMs
Pijab_u = L2aa.copy()
PIJAB_u = L2bb.copy()
PiJaB_u = L2ab.copy()
Pciab_u, PCIAB_u, PcIaB_u, PCiAb_u = cc_equations.uccsd_2rdm_ciab(
T1a, T1b, T2aa, T2ab, T2bb, L1a, L1b, L2aa, L2ab, L2bb)
Pjkai_u, PJKAI_u, PjKaI_u, PJkAi_u = cc_equations.uccsd_2rdm_jkai(
T1a, T1b, T2aa, T2ab, T2bb, L1a, L1b, L2aa, L2ab, L2bb)
Pcdab_u, PCDAB_u, PcDaB_u = cc_equations.uccsd_2rdm_cdab(
T1a, T1b, T2aa, T2ab, T2bb, L1a, L1b, L2aa, L2ab, L2bb)
Pbjai_u, PBJAI_u, PbJaI_u, PbJAi_u, PBjaI_u, PBjAi_u \
= cc_equations.uccsd_2rdm_bjai(
T1a, T1b, T2aa, T2ab, T2bb, L1a, L1b, L2aa, L2ab, L2bb)
Pklij_u, PKLIJ_u, PkLiJ_u = cc_equations.uccsd_2rdm_klij(
T1a, T1b, T2aa, T2ab, T2bb, L1a, L1b, L2aa, L2ab, L2bb)
Pbcai_u, PBCAI_u, PbCaI_u, PBcAi_u = cc_equations.uccsd_2rdm_bcai(
T1a, T1b, T2aa, T2ab, T2bb, L1a, L1b, L2aa, L2ab, L2bb)
Pkaij_u, PKAIJ_u, PkAiJ_u, PKaIj_u = cc_equations.uccsd_2rdm_kaij(
T1a, T1b, T2aa, T2ab, T2bb, L1a, L1b, L2aa, L2ab, L2bb)
Pabij_u, PABIJ_u, PaBiJ_u = cc_equations.uccsd_2rdm_abij(
T1a, T1b, T2aa, T2ab, T2bb, L1a, L1b, L2aa, L2ab, L2bb)
# ijab
ref = numpy.einsum('ijab,abij->', Pijab, Atot.vvoo)
out = numpy.einsum('ijab,abij->', Pijab_u, Aa.vvoo)
out += numpy.einsum('ijab,abij->', PIJAB_u, Ab.vvoo)
out += 4.0*numpy.einsum('ijab,abij->', PiJaB_u, Aab.vvoo)
diff = abs(out - ref) / abs(ref + 0.001)
self.assertTrue(diff < thresh, "Error in Pijab: {}".format(diff))
# ciab
ref = numpy.einsum('ciab,abci->', Pciab, Atot.vvvo)
out = numpy.einsum('ciab,abci->', Pciab_u, Aa.vvvo)
out += numpy.einsum('ciab,abci->', PCIAB_u, Ab.vvvo)
out += 2.0*numpy.einsum('ciab,abci->', PcIaB_u, Aab.vvvo)
out += 2.0*numpy.einsum('ciab,baic->', PCiAb_u, Aab.vvov)
diff = abs(out - ref) / abs(ref + 0.001)
self.assertTrue(diff < thresh, "Error in Pciab: {}".format(diff))
# jkai
ref = numpy.einsum('jkai,aijk->', Pjkai, Atot.vooo)
out = numpy.einsum('jkai,aijk->', Pjkai_u, Aa.vooo)
out += numpy.einsum('jkai,aijk->', PJKAI_u, Ab.vooo)
out += 2.0*numpy.einsum('jKaI,aIjK->', PjKaI_u, Aab.vooo)
out += 2.0*numpy.einsum('JkAi,iAkJ->', PJkAi_u, Aab.ovoo)
diff = abs(out - ref) / abs(ref + 0.001)
self.assertTrue(diff < thresh, "Error in Pciab: {}".format(diff))
# cdab
ref = numpy.einsum('cdab,abcd->', Pcdab, Atot.vvvv)
out = numpy.einsum('cdab,abcd->', Pcdab_u, Aa.vvvv)
out += numpy.einsum('cdab,abcd->', PCDAB_u, Ab.vvvv)
out += 4.0*numpy.einsum('cdab,abcd->', PcDaB_u, Aab.vvvv)
diff = abs(out - ref) / abs(ref + 0.001)
self.assertTrue(diff < thresh, "Error in Pcdab: {}".format(diff))
# bjai
ref = numpy.einsum('bjai,aibj->', Pbjai, Atot.vovo)
out = numpy.einsum('bjai,aibj->', Pbjai_u, Aa.vovo)
out += numpy.einsum('bJaI,aIbJ->', PbJaI_u, Aab.vovo)
out -= numpy.einsum('bJAi,iAbJ->', PbJAi_u, Aab.ovvo)
out -= numpy.einsum('BjaI,aIjB->', PBjaI_u, Aab.voov)
out += numpy.einsum('BjAi,iAjB->', PBjAi_u, Aab.ovov)
out += numpy.einsum('BJAI,AIBJ->', PBJAI_u, Ab.vovo)
diff = abs(out - ref) / abs(ref + 0.001)
self.assertTrue(diff < thresh, "Error in Pbjai: {}".format(diff))
# klij
ref = numpy.einsum('klij,ijkl->', Pklij, Atot.oooo)
out = numpy.einsum('klij,ijkl->', Pklij_u, Aa.oooo)
out += numpy.einsum('klij,ijkl->', PKLIJ_u, Ab.oooo)
out += 4.0*numpy.einsum('kLiJ,iJkL->', PkLiJ_u, Aab.oooo)
diff = abs(out - ref) / abs(ref + 0.001)
self.assertTrue(diff < thresh, "Error in Pklij: {}".format(diff))
# bcai
ref = numpy.einsum('bcai,aibc->', Pbcai, Atot.vovv)
out = numpy.einsum('bcai,aibc->', Pbcai_u, Aa.vovv)
out += 2.0*numpy.einsum('bCaI,aIbC->', PbCaI_u, Aab.vovv)
out += 2.0*numpy.einsum('BcAi,iAcB->', PBcAi_u, Aab.ovvv)
out += numpy.einsum('bcai,aibc->', PBCAI_u, Ab.vovv)
diff = abs(out - ref) / abs(ref + 0.001)
self.assertTrue(diff < thresh, "Error in Pbcai: {}".format(diff))
# kaij
ref = numpy.einsum('kaij,ijka->', Pkaij, Atot.ooov)
out = numpy.einsum('kaij,ijka->', Pkaij_u, Aa.ooov)
out += 2.0*numpy.einsum('kaij,ijka->', PkAiJ_u, Aab.ooov)
out += 2.0*numpy.einsum('KaIj,jIaK->', PKaIj_u, Aab.oovo)
out += numpy.einsum('kaij,ijka->', PKAIJ_u, Ab.ooov)
diff = abs(out - ref) / abs(ref + 0.001)
self.assertTrue(diff < thresh, "Error in Pkaij: {}".format(diff))
# abij
ref = numpy.einsum('abij,ijab->', Pabij, Atot.oovv)
out = numpy.einsum('abij,ijab->', Pabij_u, Aa.oovv)
out += numpy.einsum('abij,ijab->', PABIJ_u, Ab.oovv)
out += 4.0*numpy.einsum('aBiJ,iJaB->', PaBiJ_u, Aab.oovv)
diff = abs(out - ref) / abs(ref + 0.001)
self.assertTrue(diff < thresh, "Error in Pabij: {}".format(diff))